* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Download Chemistry with Physics Structure for Quiz
Depletion force wikipedia , lookup
Electronegativity wikipedia , lookup
Metallic bonding wikipedia , lookup
Electron configuration wikipedia , lookup
Chemical reaction wikipedia , lookup
Electrolysis of water wikipedia , lookup
Nanofluidic circuitry wikipedia , lookup
Gas chromatography–mass spectrometry wikipedia , lookup
Gaseous detection device wikipedia , lookup
Click chemistry wikipedia , lookup
History of molecular theory wikipedia , lookup
Hypervalent molecule wikipedia , lookup
Molecular dynamics wikipedia , lookup
Lorentz force velocimetry wikipedia , lookup
Photosynthetic reaction centre wikipedia , lookup
Bioorthogonal chemistry wikipedia , lookup
Atomic theory wikipedia , lookup
76-96 ElectroMagnetism 31-45 61-75 Quantum Mechanics Two Dimensional Motion 46-60 4 Optics 5 3 16-30 Chemistry Questions with Physics structure by Randy Skaggs Centura High School 2 6 1 7 One Dimensional Motion Vibrations and Waves Machines 97-114 1-15 Machines (1-15) Pulley (1-3) Gear (4-6) Wheel and Axle (7-9) Ramp (10-12) Lever (13-15) Pulley (1-3) A B C Pulley A 1 What ion will aluminum form? Al3+ (or Al+3) Pulley B 2 What family (group) form -1 ions? Halogens (7A) Pulley C 3 Why do atoms form ions? To achieve a stable noble gas configuration. Gear (4-6) A B C Gear A 4 In which family and period is lead located? Family 4A, Period 6 Gear B 5 What is the atomic number of tungsten? 74 Gear C 6 What is the atomic mass of gold? 197.0 Wheel and Axle (7-9) A B C Wheel And Axle A 7 Atomic size _____ down a group, and _____ across a period. increases, decreases Wheel and Axle B 8 Electronegativity _____ across a period, _____ down a group. increases, decreases Wheel and Axle C 9 Average atomic mass _____ across a period and _____ down a group. increases, increases Ramp (10-12) A B C Ramp A 10 What kind of reaction is 2 C2H6 + 5 O2 4 CO2 + 6 H2O. Combustion Ramp B 11 What kind of reaction will happen if potassium and water react? Single replacement Ramp C 12 Silver nitrate reacts with potassium chloride. What are the products, and what type of reaction takes place? Silver chloride and potassium nitrate; double replacement Lever (13-15) A B C Lever A 13 Balance: H2 + O2 H2O 2 H2 + O2 2 H2O Lever B 14 Balance: NH3 + O2 NO + H2O 2 NH3 + 2 O2 2 NO + 3 H2O Lever C 15 Balance: C12H26 + O2 CO2 + H2O 2 C12H26 + 37 O2 24 CO2 + 26 H2O Optics (16-30) Reflection (16-18) Refraction (19-21) Lens (22-24) Mirror (25-27) Focal Point (28-30) Reflection (16-18) A B C Reflection A 16 What kind of compound is sodium chloride? Ionic Reflection B 17 What do you call a combination of 2 pure substances in any proportion? Mixture Reflection C 18 Name a monatomic ion. Chloride, fluoride, oxide, etc. Refraction (19-21) A B C Refraction A 19 Give an example of a molecule. Water, carbon dioxide, etc. Refraction B 20 Name a polyatomic ion. Sulfate, nitrate, phosphate, hydroxide, etc. Refraction C 21 Which type of crystalline solids have high melting points and are held together by strong forces? Ionic Lens (22-24) A B C Lens A 22 Name CaBr2 Calcium bromide Lens B 23 Write the balanced formula for sodium sulfide. Na2S Lens C 24 Draw the structural formula for water. Mirror (25-27) A B C Mirror A 25 Find the molecular mass of H20. 18.0 Mirror B 26 Find the mass of Na2CO3. (a.k.a. formula weight) 106.0 Mirror C 27 Find the mass of (NH4)2SO4. 132.0 Focal Point (28-30) A B C Focal Point A 28 What determines if two elements will form covalent or ionic bonds? Differences in electronegativity Focal Point B 29 What kind of bond is formed between chlorine and hydrogen? Covalent (polar) Focal Point C 30 What kind of bond is formed between fluorine and potassium? Ionic Quantum Mechanics (31-45) Quarks (31-33) String Theory (34-36) Strong Force (37-39) Weak Force (40-42) Gluon (43-45) Quarks (31-33) A B C Quarks A 31 What are the two main types of nuclear reactions? Fusion and fission Quarks B 32 What instrument is used to measure radioactivity? Geiger counter Quarks C 33 Name 3 main types of nuclear decay. Alpha, beta, and gamma radiation String Theory (34-36) A B C String Theory A 34 What prefix and base unit would be used to measure the length of a grasshopper? Centimeter (5) or millimeter (50) String Theory B 35 What prefix and base unit would be used to measure the mass of an elephant? Kilogram (3500) String Theory C 36 What is the prefix and base unit that would be used to measure the amount of dosage of an active substance in an antibiotic? Milligram (i.e. - 500) Strong Force (37-39) A B C Strong Force A 37 Draw the electron-dot diagram for the element phosphorus. Strong Force B 38 Draw the Lewis structure for HCl. H-Cl Strong Force C 39 Draw the Lewis structure of CO2. O=C=O Weak Force (40-42) A B C Weak Force A 40 Name three of the molecular structures according to VSEPR. linear, bent, trigonal planar (triangular), pyramidal, or tetrahedral Weak Force B 41 Predict the VSPER structure of CH4 . tetrahedral Weak Force C 42 Explain why CO2 is linear and H2O is bent. Equal vs. unequal sharing and distribution of valence electrons. The position the atoms take during bonding. Gluon (43-45) A B C Gluon A 43 Which type of substance tastes bitter, is slippery to the touch, and has a pH value above 7? Base Gluon B 44 Which type of substance tastes sour, has a grainy texture, and has a pH value below 7? Acid Gluon C 45 The pH is found by taking the negative log of the concentration. Thus, the pH scale is a logarithmic scale. What does that mean? A logarithmic scale is one which increases in real terms by a factor of 10, for every increase in the scale of 1. For example a logarithmic scale of 1,2,3,4,5, in fact represents values of 1, 10, 100, 1000, 10000. One Dimensional Motion (46-60) Velocity (46-48) Acceleration (49-51) Force (52-54) Friction (55-57) Free Fall (58-60) Velocity (46-48) A B C Velocity A 46 If a substance is incompressible, but changes shape, what state is it? Liquid Velocity B 47 Particles that vibrate in place but do not move out of position is characteristic of a? Solid Velocity C 48 What is the most common state of matter in the universe? Plasma Acceleration (49-51) A B C Acceleration A 49 How many moles are in 19.2 g of (NH4)2CO3? 0.200 mol (19.2 g x mol/96.0 g) Acceleration B 50 How many grams are in .0890 mol of Ca(OH)2? 6.59 g (.0890 mol x 74.1 g/mol) Acceleration C 51 How many moles are in 100. g of CO2? 2.27 moles (100 g x mol/44.0 g) Force (52-54) A B C Force A 52 Identify the two parts of a solution. Solute and solvent Force B 53 What is an aqueous solution? A solution with water as the solvent. Force C 54 When a solution cannot hold anymore solute it is ______. Saturated Friction (55-57) A B C Friction A 55 A synonym for a homogenous mixture is a solution. True or False True Friction B 56 Only liquids and solids can form mixtures. True or False False Friction C 57 What kind of mixture is formed if sugar, salt, and sand is poured into a glass of water? Heterogeneous Free Fall (58-60) A B C Free Fall A 58 Give an example of a physical change. Melting, freezing, boiling, tearing, etc. Free Fall B 59 State an example of evidence of a chemical change. Light, heat or gas produced, color change, precipitate formed Free Fall C 60 What law states that more than one combination of a substance, made of the same element(s), can exist in nature? Law of multiple proportions Two Dimensional Motion (61-75) Torque (61-63) Centripetal Force (64-66) Projectile (67-69) Vector (70-72) Pythagorean Theorem (73-75) Torque (61-63) A B C Torque A 61 What is a titration also known as? Neutralization reaction Torque B 62 What is the insoluble solid that forms during a chemical reaction called? Precipitate Torque C 63 What is the main means of separating impurities from water? Distillation Centripetal Force (64-66) A B C Centripetal Force A 64 Name the branch of chemistry that studies compounds containing carbon. Organic chemistry Centripetal Force B 65 What is equal at equilibrium? The rates of forward and the reverse reactions are equal at equilibrium. Centripetal Force C 66 What is the utilization of scientific knowledge to improve our quality of life called? Technology Projectile (67-69) A B C Projectile A 67 List the general properties of a gas. Uniformly fills any container, is easily compressed, and mixes with any other gases. Projectile B 68 What are atoms of the same element that vary in mass called? Isotopes Projectile C 69 Which electrons are involved in reactions (also occurring in the outer-most energy level)? Valence electrons Vector (70-72) A B C Vector A 70 What is a hydrocarbon whose carbon-carbon bonds are single bonds called? Saturated hydrocarbon Vector B 71 What are elements and compounds collectively known as? Pure substances Vector C 72 Write the structural formula for isobutane. Pythagorean Theorem (73-75) A B C Pythagorean Theorem A 73 What significant contribution to chemistry did Dmitri Mendeleev make? The periodic table Pythagorean Theorem B 74 Write the structural formula for methane. H | H -- C -- H | H Pythagorean Theorem C 75 How many electrons can occupy an orbital? 2 Electromagnetism (76-96) Series Circuit (76-78) Parallel Circuit (79-81) Coil (82-84) Resistor (85-87) Ohm (88-90) Voltage (91-93) Current (94-96) Series Circuit (76-78) A B C Series Circuit A 76 Scientific knowledge is absolute and never changes. True or False False Series Circuit B 77 Anybody can use the scientific method to solve problems. True or False True Series Circuit C 78 Once a scientists starts the scientific method, he/she must complete all the steps before he/she can start over. True or False False Parallel Circuit (79-81) A B C Parallel Circuit A 79 Mrs. LePorte planted a garden this summer. She heard about a super, new fertilizer that was suppose to make plants produce twice as many tomatoes as untreated plants. Mrs. LePorte wanted to test the fertilizer producer’s claim. She set up two groups of 10 plants each. Group A was left untreated, and group B was treated with the fertilizer. Group A produced 346 tomatoes, while group B produced 432 tomatoes. Identify the control group. Group A Parallel Circuit B 80 Mrs. LePorte planted a garden this summer. She heard about a super, new fertilizer that was suppose to make plants produce twice as many tomatoes as untreated plants. Mrs. LePorte wanted to test the fertilizer producer’s claim. She set up two groups of 10 plants each. Group A was left untreated, and group B was treated with the fertilizer. Group A produced 346 tomatoes, while group B produced 432 tomatoes. Identify the independent variable and the dependent variable. Independent variable = application of fertilizer Dependent variable = number of tomatoes produced Parallel Circuit C 81 Mrs. LePorte planted a garden this summer. She heard about a super, new fertilizer that was suppose to make plants produce twice as many tomatoes as untreated plants. Mrs. LePorte wanted to test the fertilizer producer’s claim. She set up two groups of 10 plants each. Group A was left untreated, and group B was treated with the fertilizer. Group A produced 346 tomatoes, while group B produced 432 tomatoes. What should the conclusion be? While the treated tomato plants produced more tomatoes, it did not produce twice as many tomatoes. Thus, the fertilizer producer’s claim is false. Coil (82-84) A B C Coil A 82 How many kilograms are in 58 grams? 0.058 kg Coil B 83 How many milliliters are in 225.78 cm3? 225.78 mL Coil C 84 What is 25ºC in Kelvin? 298 K Resistor (85-87) A B C Resistor A 85 Write 0.0004056 in scientific notation. 4.056 X 10-4 Resistor B 86 How many significant figures are in 0.04050? 4 Resistor C 87 Write 2.760 X 102 in standard notation. 276.0 Ohm (88-90) A B C Ohm A 88 What unit is used to make mass measurements in the chemistry classroom? grams Ohm B 89 It is acceptable to use the Fahrenheit scale in the chemistry classroom. True or False False Ohm C 90 How do you read a graduated cylinder? By reading the bottom of the meniscus at eye level. Read the volume using all certain digits and one uncertain digit. Voltage (91-93) A B C Voltage A 91 What are the three sub-atomic particles? proton, neutron, electron Voltage B 92 What is the center of the atom? Nucleus Voltage C 93 Who discovered the nucleus? Ernest Rutherford Current (94-96) A B C Current A 94 How many electrons fit in a “p” sublevel? 6 Current B 95 What is the electron configuration for carbon? 1s22s22p2 Current C 96 What is the noble gas configuration for chlorine? [Ne]3s23p5 Vibrations & Waves (97-114) Crest (97-99) Trough (100-102) Amplitude (103-105) Frequency (106-108) Wavelength (109-111) Period (112-114) Crest (97-99) A B C Crest A 97 Given C3H8 + 5 O2 3 CO2 + 4 H2O How many moles of C3H8 will react if 3.78 moles of CO2 are formed? 1.23 moles Crest B 98 Given C3H8 + 5 O2 3 CO2 + 4 H2O How many moles of H2O will be produced if 0.0984 grams of O2 react? 0.0246 moles Crest C 99 Given C3H8 + 5 O2 3 CO2 + 4 H2O How many kilograms of CO2 are produced if 7.12 kg of C3H8 react? 21.4 kg Trough (100-102) A B C Trough A 100 Given N2 + 3 H2 2 NH3 If 13.2 moles of H2 react and 5.60 moles of N2 react, how much NH3 is formed? 8.80 moles Trough B 101 Given N2 + 3 H2 2 NH3 If 26.3 g of N2 reacts with 6.60 grams of H2, what is the limiting reagent? H2 Trough C 102 Given N2 + 3 H2 2 NH3 If 138.7 g of H2 and 546.0 g of N2 react, how many grams of NH3 is formed? 663.0 grams Amplitude (103-105) A B C Amplitude A 103 Which type of bond involves equal sharing of electrons between atoms? Nonpolar covalent Amplitude B 104 If a reaction was considered to be dangerously exothermic, how could it safely be carried out? Use an ice water bath to decrease the reaction rate. Amplitude C 105 Which is more reactive (explosive): a full gas can or a gas can with only a few drops of gasoline in it? Why? A gas can with only a few drops of gas because the individual gas molecules are exposed to more O2. Frequency (106-108) A B C Frequency A 106 When an athletic ice pack is activated, what is this an example of? Endothermic reaction Frequency B 107 Energy is ________ in an exothermic reaction. released Frequency C 108 Water freezing involves what kind of energy change? Exothermic Wavelength (109-111) A B C Wavelength A 109 Name 3 diatomic molecules. H, N, O, F, Cl, Br, I Wavelength B 110 What kind of bond helps give water the strongest surface tension of any liquid? Hydrogen bond Wavelength C 111 What is the amount of a substance that contains 6.02 x 1023 of that substance? 1 mole Period (112-114) A B C Period A 112 What does STP represent and what are the corresponding values? Standard temperature (0C) and pressure (101.3 kPa, 1 atm, or 760 mm) Period B 113 When balancing a chemical equation, what can be added to adjust the number of reactants and products? Coefficients Period C 114 What is the term that refers to the conditions necessary for a substance to occur as a solid, liquid and gas? Triple point