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GPS semester review True/False Indicate whether the sentence or statement is true or false. ____ 1. All important scientific discoveries are made by professional scientists. ____ 2. Scientific models have two basic types. ____ 3. Variables are those factors that can be changed in an experiment. ____ 4. When observing and recording the results of an experiment, observations may include both measurements and descriptions. ____ 5. Using scientific methods means doing a professional experiment. ____ 6. Laboratory safety is not an important concern for scientists. ____ 7. If the results of a study do not support a hypothesis, it means that the experiment failed. ____ 8. Scientific models are often used to help scientists understand a problem. ____ 9. Computer models can be touched. ____ 10. Einstein's idea model for his theory of relativity was also built as a physical model. ____ 11. Once a scientific model has been created, it cannot be changed. ____ 12. Although people of different races, sexes, and cultures have made scientific discoveries, they have all been adults, older than you. ____ 13. The only way to test a hypothesis is by conducting a controlled experiment. ____ 14. An important part of planning an experiment is determining the materials needed. ____ 15. Data tables help you to organize your observations and test results. ____ 16. Data are always numerical measurements. ____ 17. A hypothesis is a decision based on the results of the experiment. ____ 18. If it takes more than a few experiments to find the answer to a particular problem, it means that the scientist has failed and is not a very good researcher. ____ 19. It is often necessary to look at the same problem in different ways in order to find an answer. ____ 20. Models may change as new discoveries are made. ____ 21. Atoms of different elements have different numbers of protons. ____ 22. Most of an atom is empty space. ____ 23. The energy of an electron varies depending upon which energy level that electron occupies. ____ 24. In an atom, an electron that is close to the nucleus is on the highest energy level. ____ 25. To become more stable, an atom that has two electrons in its outer energy level will gain two electrons. ____ 26. A polar molecule is one that exists only at low temperatures. ____ 27. It is easier to remove an electron from the outer energy level than from one closer to the nucleus. ____ 28. Elements are placed in the same column of the periodic table because their outer electrons are in the same energy level. ____ 29. The N2 molecule is nonpolar. ____ 30. Nonpolar molecules have a slight negative charge on one end and a slight positive charge on the other. ____ 31. According to the law of conservation of mass, three atoms of calcium can react to produce six atoms of calcium. ____ 32. Chemical equations are balanced by changing the subscripts of the molecules. ____ 33. Energy is needed to break bonds in chemical reactions. ____ 34. A chemical reaction in which more energy is absorbed than is released is endothermic. ____ 35. All chemical reactions occur at the same rate. ____ 36. Activation energy is the minimum amount of energy needed for a chemical reaction to begin. ____ 37. Exothermic reactions do not require any activation energy. ____ 38. When a chemical equation contains the same number of atoms on both sides, the equation is balanced. ____ 39. Catalysts are always enzymes. ____ 40. Lowering the temperature slows down most chemical reactions. ____ 41. The rate of a reaction is the speed at which products form or reactants disappear. ____ 42. The solubility of a substance describes how fast a solute will dissolve. ____ 43. A solution is a homogeneous mixture. ____ 44. Solutes can be separated from the their solvents by physical means. ____ 45. Dissolution is the forming of a precipitate. ____ 46. All liquid solutions contain water. ____ 47. All aqueous solutions contain water. ____ 48. For the same concentration, strong acids have lower pH values than weak acids. ____ 49. Indicators can be used to find out how acidic or basic a solution is. ____ 50. A solution is neutral if it has more hydronium ions than hydroxide ions. ____ 51. An antacid has a pH greater than seven. ____ 52. Water is often called the universal solvent. ____ 53. A solution in which a gas is the solvent is an aqueous solution. ____ 54. Vinegar and oranges both contain acids. ____ 55. Hydrochloric acid can be used to clean mortar from brick walls. ____ 56. Acids give soaps their useful properties. Multiple Choice Identify the letter of the choice that best completes the statement or answers the question. ____ 57. The process of learning more about the natural world is ____. a. an experiment c. a hypothesis b. a control d. science ____ 58. Experiments and investigations must be ____. a. approved c. repeatable b. unreproduceable d. accepted ____ 59. A prediction about a problem that can be tested is a(n) ____. a. hypothesis c. dependent variable b. independent variable d. control ____ 60. It is important to ____ when drawing conclusions from scientific information. a. keep notes c. talk to others b. make up your mind d. keep an open mind ____ 61. The factor being measured in an experiment is the ____. a. hypothesis c. variable b. scientific law d. control ____ 62. A variable in an experiment that stays the same is a(n) ____. a. independent variable c. constant b. dependent variable d. control ____ 63. Science cannot answer questions about ____. a. distance c. politics b. temperature d. the natural world ____ 64. Models can do all of the following EXCEPT ____. a. make a hypothesis c. test predictions b. communicate d. save time, money, and lives ____ 65. Limitations of models include ____. a. ability to communicate c. the tendency to change b. the ability to test predictions d. the ability to save time ____ 66. Models can be used to describe which of the following environments? a. the floor of the ocean c. space b. volcanoes d. all of the above ____ 67. Scientific ____ must be supported by observations and results from many investigations and are not absolute. a. constants c. systems b. theories d. laws ____ 68. The three branches of science are ____, Earth, and physical. a. space c. life b. physics d. chemistry ____ 69. Another term for technology is ____. a. applied science c. comparison b. controlled experiment d. sequence ____ 70. When designing an experiment, the first step is to ____. a. draw conclusions c. recognize a problem b. form a hypothesis d. test a hypothesis ____ 71. When conducting an experiment, the last step is to ____. a. analyze the data c. form a hypothesis b. draw conclusions d. recognize a problem ____ 72. A camera is an example of ____. a. an experiment c. technology b. a robot d. a scientific method ____ 73. To evaluate the observations you make, you must use ____. a. a hypothesis c. measurements b. critical thinking d. models ____ 74. Scientists must be impartial and not base their conclusions on ____. a. opinions c. models b. evidence d. experiments ____ 75. To ____ means to draw a conclusion based on something you observe. a. guess c. model b. control d. infer ____ 76. ____ materials are designed to get you to buy a product or service. a. Model c. Observed b. Scientific d. Advertising ____ 77. When you measure something in meters cubed, you are measuring ____. a. length c. volume b. area d. mass ____ 78. If you were to round off the measurement 2.33501 grams to three digits, you would get ____. a. 2.33 g c. 2.35 g b. 2.34 g d. 2.36 g ____ 79. A bowler who always left the same three pins standing could be considered a(n) ____ bowler. a. accurate and precise c. precise b. accurate d. good ____ 80. A millisecond is to a second as one is to ____. a. 1,000 c. 10 b. 100 d. 100,000 ____ 81. A cubic centimeter can be expressed as ____. a. ccm c. ct b. cm3 or cc d. ccm3 ____ 82. The value of the boiling point of water on the Kelvin scale is ____ the value of the boiling point of water on the Celsius scale. a. equal to c. higher than b. lower than d. 10 times ____ 83. To make a scale drawing of a basketball court, which of the following scales would be most useful? a. 1 cm = 1 m c. 1 m = 1 km b. 1 km = 1 m d. 1 m = 1 cm ____ 84. When evaluating a paper delivery, a homeowner would be most concerned about ____. a. the accuracy of the throws c. the speed of the throws b. the precision of the throws d. the timing of the throws ____ 85. In which of the following situations would it NOT be wise to estimate? a. the number of miles per gallon an automobile can provide b. the time it would take to walk to the grocery store from home c. the amount of food to prepare for twelve people d. the amount of medicine to give a patient ____ 86. SI units are useful because they are all related by multiples of ____. a. two c. 10 b. five d. 50 ____ 87. The advantage data in a table has over data presented in a paragraph is the ____. a. number of digits that can be included b. accuracy of the data ____ 88. ____ 89. ____ 90. ____ 91. ____ 92. ____ 93. ____ 94. ____ 95. ____ 96. ____ 97. ____ 98. ____ 99. ____ 100. c. way the data is organized d. amount of detail that can be included In which of the following situations would the reply 1 minute, 45 seconds, and ten one-hundredths of a second be a reasonable answer? a. describing the time left before the end of class b. estimating the length of a cut on a CD c. describing the time it takes to bike from your house to school d. describing the time of a bobsled run at the Olympic trials Which of the following visual displays would be best for describing the percentages of different gases in the atmosphere? a. circle graph c. bar graph b. line graph d. any of the above Matter that has the same composition and properties throughout is called a(n) ____. a. substance c. atom b. mixture d. isotope When two pure substances are combined so that each of the pure substances retains its own properties, the result is a(n) ____. a. compound c. element b. mixture d. isotope All ____ except mercury are solids at room temperature. a. metalloids c. metals b. nonmetals d. mixtures How many atoms of calcium are in a unit of calcium phosphate whose formula is Ca3(PO4)2? a. one c. three b. two d. four In general, nonmetals are ____. a. good conductors of electricity c. good conductors of heat b. malleable and ductile d. gases at room temperature In general, metals are ____. a. poor conductors of heat c. poor conductors of electricity b. brittle d. good conductors of heat When Rutherford performed his metal foil experiment, he was surprised that most of the alpha particles ____. a. were deflected by the foil c. were absorbed by the foil b. bounced back from the foil d. passed straight through the foil Water and hydrogen peroxide have different properties because ____. a. they are made from different elements b. one contains a greater percentage of oxygen than the other c. one is a compound and one is a mixture d. only water follows the law of definite proportions Which of these statements about matter is NOT true? a. During chemical changes, matter is destroyed. b. Matter has mass and takes up space. c. Matter can be divided into pure substances and mixtures. d. Matter is made up of atoms. The millions of compounds that exist are made from approximately ____ elements. a. 50 c. 115 b. 75 d. 150 Most of the mass of an atom is found in its ____. ____ 101. ____ 102. ____ 103. ____ 104. ____ 105. ____ 106. ____ 107. ____ 108. ____ 109. ____ 110. ____ 111. ____ 112. ____ 113. ____ 114. a. nucleus c. atomic number b. electron cloud d. mass number Vegetable soup is an example of a ____. a. homogeneous mixture c. compound b. heterogeneous mixture d. pure substance When someone stirs cocoa powder into hot water or hot milk, the cocoa changes from a ____. a. homogeneous mixture into a compound b. homogeneous mixture into a non-uniform mixture c. compound into a heterogeneous mixture d. heterogeneous mixture into a homogeneous mixture A certain atom has 26 protons, 26 electrons, and 30 neutrons. It mass number is ____. a. 26 c. 52 b. 30 d. 56 Which of the following CANNOT be classified as matter? a. an odorless, colorless gas c. alpha particles b. the heat given off by a light bulb d. an electron cloud ____ has mass and takes up space. a. Thought c. Air b. Light d. Emotion The surface tension in a cup of water is caused by ____. a. attractive forces between the water and its container b. attractive forces between water molecules c. adhesive forces between water molecules d. adhesive forces between the water and its container The measure of the average kinetic energy of the particles of a substance is the ____. a. temperature c. thermal energy b. heat d. kinetic energy The ____ is a unit of force. a. pascal c. newton b. atmosphere d. kilopascal Archemedes' Principle helps to explain the relationship between ____. a. kinetic energy and density c. pressure and density b. temperature and density d. buoyancy and density As a sample of matter is cooled, which property of its particles increases? a. average kinetic energy c. buoyancy b. pressure d. cohesive forces The freezing point of a substance is ____ the melting point of the same substance. a. greater than c. equal to b. less than d. unrelated to Kinetic energy is the ____ of motion. a. temperature c. heat b. energy d. state Pascal's Principle can be applied to ____. a. all states of matter c. solids and liquids only b. solids and gases only d. any matter that can flow Which of these objects is least like a crystalline solid? a. a pillowcase full of Halloween candy c. a checkerboard b. a spider web d. a chain-link fence ____ 115. Which of the following factors does NOT affect the behavior of a gas in a closed container? a. the number of particles c. the cohesive forces within the gas b. the average kinetic energy d. the size of the container ____ 116. An amorphous solid ____. a. flows freely at any temperature c. has a repeating unit structure b. has no true melting point d. becomes less viscous as it cools ____ 117. Viscosity is a measure of a fluid's ____. a. resistance to flow c. average kinetic energy b. adhesive forces d. buoyancy ____ 118. For most substances, the distance between particles is smallest when the substance ____. a. exists as a gas c. exists as a crystalline solid b. exists as a liquid d. exists as an amorphous solid ____ 119. A cork is able to float on water because it is ____. a. a crystalline solid c. small in size b. equal in density to water d. less dense than the water ____ 120. The following are examples of physical properties EXCEPT ____. a. density c. color b. shape d. ability to react with oxygen ____ 121. All of the following are a state of matter EXCEPT ____. a. solid c. liquid b. gas d. density ____ 122. Density is an example of a ____. a. chemical property c. physical property b. chemical change d. physical change ____ 123. Density is equal to ____. a. volume times mass c. volume divided by mass b. mass times volume d. mass divided by volume ____ 124. An acidic sample has a pH ____. a. between 0 and 7 c. of exactly 7 b. between 7 and 14 d. of exactly 0 ____ 125. A basic sample has a pH range ____. a. between 0 and 7 c. of exactly 7 b. between 7 and 14 d. of exactly 0 ____ 126. A neutral sample has a pH ____. a. between 0 and 7 c. of exactly 7 b. between 7 and 14 d. of exactly 0 ____ 127. A characteristic of matter that allows it to change to something new is a ____. a. physical property c. chemical property b. physical change d. chemical change ____ 128. The following are examples of chemical properties except ____. a. the ability to burn c. the ability to react with oxygen b. the ability to be crushed d. toxicity ____ 129. One of the chemical properties of bases is that they ____. a. taste sour c. crumble b. feel slippery d. corrode metal ____ 130. Acids and bases can be all of the following except ____. a. living c. harmful b. useful d. edible ____ 131. All of the following are examples of physical changes except ____. a. melting c. burning b. evaporating d. solidifying ____ 132. All of the following are examples of chemical weathering except ____. a. acid rain c. rocks breaking because of ice b. cave formations d. pollution ____ 133. Which of the following is an example of a physical change? a. evaporation in a swamp cooler c. digestion of a hamburger b. electricity produced by a dry cell d. rusting of a car body ____ 134. Which of the following is an example of a chemical change? a. painting a house c. bending steel b. freezing water d. baking soda in water ____ 135. Which of the following is an example of a chemical change? a. bending a pop can c. melting wax b. evaporation of milk d. burning paper ____ 136. The particles that make up an atom are ____. a. electrons, protons, and nuclei c. protons, neutrons, and nuclei b. elements, protons, and electrons d. protons, neutrons, and electrons ____ 137. In an atom, electrons ____. a. are located in the nucleus c. travel outside the nucleus b. are paired with neutrons d. are always in the same place in an atom ____ 138. Dot diagrams are used to represent ____. a. protons c. atomic mass b. outer electrons d. the structure of the nucleus ____ 139. The energy levels of an atom are occupied by ____. a. electrons c. neutrons b. protons d. ions ____ 140. The maximum number of electrons in the second energy level of an atom is ____. a. two c. eight b. four d. ten ____ 141. In the compound, H2O, the electrons in the bonds are unequally shared between oxygen and hydrogen, forming ____. a. cations c. nonpolar molecules b. ionic bonds d. polar bonds ____ 142. Alkali metals tend to lose one electron per atom in forming bonds. What family of elements will form ionic bonds with alkali metals, in a 2-to-1 ratio, alkali metal to other element? a. alkaline earth elements c. halogens b. oxygen family d. noble gases ____ 143. Some elements are unlikely to lose or gain electrons, but share electrons to form covalent bonds. Which of the following elements is most likely to form covalent bonds? a. silicon (#14) c. chlorine (#17) b. oxygen (#8) d. sulfur (#16) ____ 144. What is the neutral particle that is formed when atoms share electrons? a. caution c. molecule b. ionic compound d. nucleus ____ 145. In carbon dioxide, each oxygen atom shares four electrons with the carbon atom. What is this type of bond called? a. triple covalent c. polar covalent ____ 146. ____ 147. ____ 148. ____ 149. ____ 150. ____ 151. ____ 152. ____ 153. ____ 154. ____ 155. ____ 156. ____ 157. ____ 158. ____ 159. b. double covalent d. ionic Which of the following bonds is polar? a. F—F c. O—O b. O—H d. H—H What is the group number for elements that have a stable number of electrons in their outer energy level? a. 18 c. 2 b. 17 d. 1 Which of the following compounds is not likely to have ionic bonds? a. LiF c. CH4 b. NaCl d. MgF2 Aspartame is an artificial sweetener; its formula is C13H16N2O5. Which element in the formula has the largest number of atoms? a. carbon c. nitrogen b. hydrogen d. oxygen Which of the following notations represents a molecule? a. NaCl c. H2O b. He d. Li How many dots are shown in the electron dot diagram for calcium, element number 20? a. one c. eight b. two d. twenty Sulfur, element 16, forms a negative ion. How many dots would you have to show in the electron dot diagram for the sulfur ion? a. two c. eight b. six d. sixteen What is the name given to the units that make up covalently bonded compounds? a. molecules c. electrons b. ions d. energy levels Which of the following elements will likely form a negative ion in its ionic compounds? a. Li, lithium c. Mg, magnesium b. Al, aluminum d. Cl, chlorine Which of the following statements about the atom is false? a. Each atom has a tiny nucleus at its center. b. All the protons and neutrons are located in the nucleus. c. Electrons travel in definite circular pathways around the nucleus. d. All atomic nuclei are positively charged. Which of the following changes is chemical rather than physical? a. Water is boiled. c. Glass is shattered. b. Aluminum foil is crumpled. d. Wood is burned. Each substance written to the right of the arrow in a chemical equation is a ____. a. reactant c. precipitate b. product d. catalyst According to the law of conservation of mass, how does the mass of the products in a chemical reaction compare to the mass of the reactants? a. There is no relationship. b. The mass of products is sometimes greater. c. The mass of reactants is greater. d. The masses are always equal. Which of the following changes gives NO evidence that a chemical reaction has taken place? ____ 160. ____ 161. ____ 162. ____ 163. ____ 164. ____ 165. ____ 166. ____ 167. ____ 168. ____ 169. ____ 170. ____ 171. ____ 172. a. A cube of solid forms a puddle of liquid. b. A certain liquid is added to a solid, and bubbles of gas form. c. Two liquids are mixed, and a precipitate forms. d. Heating a blue solid turns the solid white. When the following chemical reaction is balanced, what number is placed before NH3? N2 + 3H2 NH3 a. 1 c. 3 b. 2 d. 6 Which chemical equation is balanced? a. Na + O2 Na2O c. 2Na + 2O2 2Na2O b. 2Na2 + O2 2Na2O d. 4Na + O2 2Na2O Which of the following conditions would likely cause the activation energy to be high? a. atoms are close together c. atoms are not close together b. the temperature is hot d. a catalyst is present Which one of the following factors would not speed up a chemical reaction? a. increasing the concentration of a reactant b. adding a catalyst c. raising the temperature d. making the reactant particles larger Which of the following materials will burn the fastest in open air? a. a log, two feet in diameter b. two logs, each one foot in diameter c. a pile of small splinters made from a two-foot diameter log d. Both logs and the splinters will burn at the same rate. A substance that speeds up chemical reactions in the human body is ____. a. an inhibitor c. polar b. an enzyme d. a prohibitor The substance being dissolved to form a solution is the ____. a. solvent c. precipitate b. solute d. mixture The atmosphere of Earth is an example of a ____ solution. a. liquid-liquid c. gas-gas b. gas-liquid d. solid-liquid A solution that contains all the solute it can hold under the given conditions is ____. a. saturated c. dilute b. unsaturated d. supersaturated Which of the following will cause a greater amount of oxygen to dissolve in 100 g of water? a. Heat the water. b. Decrease the oxygen gas pressure. c. Increase the oxygen gas pressure. d. all of the above A solution that contains a large amount of solute compared to solvent is described as ____. a. dilute c. unsaturated b. heterogeneous d. concentrated Which of the following properties is NOT characteristic of acidic solutions? a. has a sour taste c. feels slippery b. conducts electricity d. is corrosive to certain metals Which of the following mixtures is NOT an example of a substance? ____ 173. ____ 174. ____ 175. ____ 176. ____ 177. ____ 178. ____ 179. a. drinking water c. brass b. air d. pizza When aqueous solutions of table salt and silver nitrate are mixed, a white solid forms. This solid is ____. a. soluble c. an alloy b. a precipitate d. a solute Stainless steel is an example of a ____ solution. a. liquid-solid c. solid-solid b. solid-liquid d. gas-solid Which of the following types of substance would be least likely to dissolve in water? a. a nonpolar molecule like cholesterol b. a polar molecule like ethyl alcohol c. an ionic compound, such as magnesium chloride d. a polar molecule like the fruit sugar, fructose The solubility of sodium chloride (table salt) in water at 10°C is 32 g in 100 g of water. If 14 g of sodium chloride are dissolved in 50 g of water at 10°C, the solution is ____. a. saturated c. concentrated b. dilute d. acidic The amount of table sugar that will dissolve in 1 kg of water can be increased by ____. a. stirring the solution b. heating the solution c. breaking the sugar into smaller pieces d. doing any of the above A solution with a pH of 13 is a ____. a. weak acid c. strong acid b. weak base d. strong base How does a solution with a pH of 2 compare to a solution with a pH of 1? a. The pH 2 solution is two times more acidic than that with a pH of 1. b. The pH 1 solution is ten times more acidic than that with a pH of 2. c. The pH 1 solution is two times more basic than that with a pH of 2. d. The pH 2 solution is ten times more acidic than that with a pH of 1. Matching Match the units of measurement with the factors that can be measured. a. meter c. kilogram b. liter d. kelvin ____ ____ ____ ____ 180. 181. 182. 183. mass of an orange volume of orange juice freezing point of carbon dioxide length of a soccer field Match the drawings in Figure 3-1 to the descriptions below. Figure 3-1 ____ ____ ____ ____ 184. 185. 186. 187. element mixture of two elements compound mixture of a compound and element Match each symbol or formula with the correct element or compound. a. O2 c. CO b. CO2 d. C ____ 188. carbon ____ 189. oxygen ____ 190. carbon dioxide Match each item with the correct statement below. a. buoyant force d. temperature b. viscosity e. atmospheric pressure c. fluid ____ 191. measures the average kinetic energy of particles ____ 192. 101.3 kilopascals ____ 193. upward force of a liquid Match the term with the event or the definition. a. physical property c. chemical property b. physical change d. chemical change ____ ____ ____ ____ 194. 195. 196. 197. plant making food out of water and carbon dioxide wind and water erosion leaves changing colors in the fall the wall was blue Match the substance with the state of matter. a. gas b. liquid c. solid ____ ____ ____ ____ ____ 198. 199. 200. 201. 202. gasoline air ice cubes sand nitrogen Match each term with the correct description below. a. electron g. polar molecule b. nucleus h. compound c. positive ion i. symbol d. negative ion j. formula e. ionic bond k. molecule f. covalent bond l. subscript ____ 203. positively charged center of atom ____ ____ ____ ____ ____ ____ ____ ____ ____ 204. 205. 206. 207. 208. 209. 210. 211. 212. a charged atom that has gained one or more electrons positive ion and negative ion joined together represents an element neutral particle formed when atoms share electrons substance that contains two or more elements particle in which electrons are shared unequally a charged atom that has lost one or more electrons negative particle in an atom atoms joined together by sharing electrons Match each item with the best description below. a. physical change h. b. conservation of mass i. c. chemical change j. d. exothermic k. e. product l. f. catalyst m. g. activation energy ____ ____ ____ ____ ____ ____ ____ ____ ____ ____ ____ ____ 213. 214. 215. 216. 217. 218. 219. 220. 221. 222. 223. 224. reaction that absorbs energy frying an egg number of atoms in a chemical formula present before chemical reaction reactant mass equals product mass reaction that releases energy a measure of how fast a reaction occurs present after chemical reaction minimum energy to start reaction speeds up a chemical reaction used to slow the spoilage of food speeds up reactions in living cells Match each item with the best description below. a. acid i. b. base j. c. solution k. d. solubility l. e. solute m. f. solvent n. g. dilute o. h. concentrated ____ ____ ____ ____ ____ ____ ____ 225. 226. 227. 228. 229. 230. 231. subscript endothermic inhibitor reactant rate of reaction enzyme H3O+ neutralization indicator heterogeneous mixture insoluble precipitate OH- reaction between an acid and a base amount of substance that can dissolve in 100 g of water produces hydronium ions in water formula for the hydronium ion another name for a homogenous mixture formula for the hydroxide ion not uniform in composition ____ ____ ____ ____ ____ ____ ____ 232. 233. 234. 235. 236. 237. 238. oil in water larger or largest part of a solution large amount of solute per given amount of solvent turns different colors in acids and bases produces hydroxide ions in water substance that dissolves to form a solution small amount of solute in a given amount of solvent Match each type of substance with the correct description below. a. acid c. both b. base d. neither ____ ____ ____ ____ ____ ____ ____ ____ ____ ____ ____ 239. 240. 241. 242. 243. 244. 245. 246. 247. 248. 249. solution with a pH above 7 neutral solution tastes bitter solution with a pH of 3 corrosive solution feels slippery changes the color of indicators reacts with metals, producing hydrogen gas tastes sour produce hydronium ions when dissolved in water produce hydroxide ions when dissolved in water GPS semester review Answer Section TRUE/FALSE 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. 21. 22. 23. 24. 25. 26. 27. 28. 29. 30. 31. 32. 33. 34. 35. 36. 37. 38. 39. 40. 41. ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: F F T T F F F T F F F F F T T F F F T T T T T F F F T F T F F F T T F T F T F T T DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: B B B B B B B B B B B B B B B B B B B B B B B A A B A A A B B B B B B B B B B B B OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: 1/1 8/3 5/2 5/2 5/2 5/2 6/2 8/3 8/3 8/3 8/3 1/1 5/2 5/2 5/2 5/2 6/2 5/2 5/2 9/3 1/1 1/1 2/1 2/1 4/2 5/2 2/1 2/1 5/2 5/2 2/1 2/1 3/1 3/1 5/2 5/2 5/2 2/1 5/2 5/2 5/2 42. 43. 44. 45. 46. 47. 48. 49. 50. 51. 52. 53. 54. 55. 56. ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: F T T F F T T F F F T F T T F DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: B B B B B B B B B B B B B B B OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: 6/2 1/1 3/1 3/1 3/1 3/1 11/3 11/3 1/1 11/3 5/2 5/2 10/3 10/3 10/3 DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: B B B B B B B B B B B B B B B B B B B B B B B B B B B B OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: 1/1 10/4 6/2 10/4 5/2 5/2 1/1 9/3 9/3 8/3 2/1 4/1 4/1 5/2 5/2 4/1 10/4 10/4 7/2 11/4 5/2 2/1 3/1 5/2 5/2 5/2 5/2 3/1 MULTIPLE CHOICE 57. 58. 59. 60. 61. 62. 63. 64. 65. 66. 67. 68. 69. 70. 71. 72. 73. 74. 75. 76. 77. 78. 79. 80. 81. 82. 83. 84. ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: D C A D C C C A C D B C A C B C B A D D C B C A B C A A 85. 86. 87. 88. 89. 90. 91. 92. 93. 94. 95. 96. 97. 98. 99. 100. 101. 102. 103. 104. 105. 106. 107. 108. 109. 110. 111. 112. 113. 114. 115. 116. 117. 118. 119. 120. 121. 122. 123. 124. 125. 126. 127. 128. 129. 130. ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: D C C D A A B C C D D D B A C A B D D B C B A C D D C B D A C B A C D D D C D A B C C B B A DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: B B B B B B B B B B B B B B B B B B A B B B B B B B B B B B B B B B B B B B B B B B B B B B OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: 1/1 4/2 6/3 2/1 8/3 9/3 10/3 8/2 9/3 8/2 8/2 4/1 9/3 1/1 5/2 3/1 10/3 10/3 6/2 2/1 1/1 2/1 3/2 7/3 7/3 4/2 3/2 3/2 7/3 2/1 7/3 2/1 2/1 2/1 6/3 1/1 1/1 2/1 2/1 3/1 3/1 3/1 4/2 4/2 5/2 5/2 131. 132. 133. 134. 135. 136. 137. 138. 139. 140. 141. 142. 143. 144. 145. 146. 147. 148. 149. 150. 151. 152. 153. 154. 155. 156. 157. 158. 159. 160. 161. 162. 163. 164. 165. 166. 167. 168. 169. 170. 171. 172. 173. 174. 175. 176. ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: C C A D D D C B A C D B A C B B A C B C B C A D C D B D A B A C D C D B C A C D C D B C A C DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: B B A B B B B B B B B A A B A A B A B A B A B A A B B B A B B B B A B B B B A B B B B A A A OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: 7/3 8/3 7/3 7/3 7/3 1/1 1/1 3/1 3/1 3/1 5/2 4/2 4/2 4/2 4/2 5/2 1/1 4/2 6/2 4/2 3/1 3/1 4/2 3/1 1/1 1/1 2/1 2/1 1/1 2/1 2/1 5/2 5/2 5/2 5/2 3/1 4/1 7/2 6/2 8/2 10/3 1/1 3/1 4/1 6/2 8/2 177. ANS: B 178. ANS: D 179. ANS: B DIF: B DIF: B DIF: A OBJ: 7/2 OBJ: 11/3 OBJ: 11/3 MATCHING 180. 181. 182. 183. ANS: ANS: ANS: ANS: C B D A DIF: DIF: DIF: DIF: B B B B OBJ: OBJ: OBJ: OBJ: 5/2 5/2 5/2 5/2 184. 185. 186. 187. ANS: ANS: ANS: ANS: D B A C DIF: DIF: DIF: DIF: B B B B OBJ: OBJ: OBJ: OBJ: 5/2 5/2 9/3 5/2 188. ANS: D 189. ANS: A 190. ANS: B DIF: B DIF: B DIF: B OBJ: 5/2 OBJ: 5/2 OBJ: 9/3 191. ANS: D 192. ANS: E 193. ANS: A DIF: B DIF: B DIF: B OBJ: 3/2 OBJ: 7/3 OBJ: 6/3 194. 195. 196. 197. ANS: ANS: ANS: ANS: D B D A DIF: DIF: DIF: DIF: B B B B OBJ: OBJ: OBJ: OBJ: 7/3 8/3 8/3 1/1 198. 199. 200. 201. 202. ANS: ANS: ANS: ANS: ANS: B A C C A DIF: DIF: DIF: DIF: DIF: B B B B B OBJ: OBJ: OBJ: OBJ: OBJ: 1/1 1/1 1/1 1/1 1/1 203. 204. 205. 206. 207. 208. 209. 210. 211. 212. ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: B D E I K H G C A F DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: B B B B B B B B B B OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: 1/1 4/2 4/2 6/2 4/2 4/2 5/2 4/2 1/1 4/2 213. ANS: I DIF: B OBJ: 3/1 214. 215. 216. 217. 218. 219. 220. 221. 222. 223. 224. ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: C H K B D L E G F J M DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: B B B B B B B B B B B OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: 1/1 2/1 2/1 2/1 3/1 5/2 2/1 5/2 5/2 5/2 5/2 225. 226. 227. 228. 229. 230. 231. 232. 233. 234. 235. 236. 237. 238. ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: J D A I C O L M F H K B E G DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: B B B B B B B A B B B B B B OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: 12/3 7/2 10/3 10/3 1/1 10/3 2/1 6/2 3/1 8/2 11/3 10/3 3/1 8/2 239. 240. 241. 242. 243. 244. 245. 246. 247. 248. 249. ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: ANS: B D B A C B C A A A B DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: DIF: B B B B B B B B B B B OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: OBJ: 11/3 11/3 10/3 11/3 10/3 10/3 11/3 10/3 10/3 10/3 10/3