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Chemistry Study Guide Academic Things to study: Any chemistry bookwork packets chemistry worksheets and notes any chemistry quizzes THIS STUDY GUIDE! Elements and symbols vocabulary below make flashcards for +5 Vocabulary: chemical change chemical property chemistry compound condensation density element evaporation freezing gas liquid matter NAME: melting mixture physical change physical property solid sublimation Chemistry Exam is on __Weds, Oct. 22____ Study Guide due on __Mon, Oct. 20__ Tutorials on Mon. 10/20 – Pickett 3:30-4:15 pm Tues. 10/21 – Simpson 3:30-4:15 pm Weds. 10/22 – Helm 7:45 am Flashcards due on ___ Weds, Oct. 22_____ Complete the attached study guide pages beginning with the questions and charts below. Complete the chart by checking the appropriate column: Property Physical Chemical √ state of matter flammability boiling point shape reaction with acid weight oxidizing rusting magnetic Use what you know about physical changes and chemical changes to identify the types of changes taking place in each example. Read each sentence. Write “P” in front of the physical changes and “C” in front of the chemical changes. 1. ____ carving a statue out of marble 2. ____ leaves changing color in the fall 15. ____ color of the substance changes unexpectedly 3. ____ ice cream melting on the cone 16. ____ leaves are burned to start a fire 4. ____ fireworks exploding on the 4th of July 17. ____ while climbing a tree, you break a branch 5. ____ cooking waffles on the stove 18. ____ your body is digesting your breakfast 6. ____ lighting a match 19. ____ temperature change 7. ____ a red mark appears after a bee sting 20. ____ your brother bends a metal wire 8. ____ a drop of acid on marble creates bubbles 21. ____ charcoal in a fire turns to ash 9. ____ baking a cake 22. ____ water is boiled 10. ____ sanding a piece of wood in a workshop 23. ____ yolk of an egg, which contains sulfur, causes 11. ____ a glass falls and breaks 12. ____ you toast bread until it is burned 13. ____ a gas is formed tarnish to form on silver 24. ____ a battery makes electricity to turn on a flashlight 14. ____ a balloon pops Study guide due MONDAY, October 20 Solids, Liquids, and Gases Study Guide Complete the chart: State of Matter Definite Size Definite Shape Solid How are the particles arranged? How do the particles move? Tightly packed No No No Very fast Complete the chart: Phase Change Changes FROM Changes TO Heat Energy Melting LIQUID LIQUID GAS Molecule Movement Example increases ICE TO WATER increases DRY ICE add HEAT LIQUID remove HEAT SOLID remove HEAT “SWEAT” ON A COLD DRINK decreases Check the type of change in the energy of the particles of matter that applies to each description. Description As you breathe on a mirror, a film of water briefly forms on the mirror “Dry ice” seems to disappear A puddle dries up on a sunny day Water freezes Butter melts Thermal Energy Increases Thermal Energy Decreases Directions: Circle the “T” if a statement is true or a “F” if a statement is false. Correct the false statements by changing the underlined word! 1. All objects are made of matter. T F 2. Solids have more energy than liquids. T F 3. Gases have more energy than solids or liquids. T F 4. Changes of phase involve losing or gaining energy. T F 5. Melting is the phase change from a liquid to a solid. T F 6. Boiling results when a liquid changes to a gas. T F 7. Water freezes at zero degrees centigrade. T F 8. Condensation occurs when a gas changes to a liquid. T F 9. Freezing occurs when a liquid changes to a gas. T F DENSITY Answer the questions below using the densities in the table. Density = mass ÷ volume What is the coin made of? ______________________ What did you find??_______________________ What is the ring made of?? ______________________ What is the block made of?? _________________ Study guide due MONDAY, October 20 Use the diagram to answer the five questions below. Identify the physical state of the substances pictured. 1. Wood _________________ 2. Salad oil _________________ 3. Oxygen _________________ 4. What would happen to the shape of each substance if the jars were broken? Keep its shape? Change its shape? If so, how? EXPLAIN! a. wood – b. salad oil – c. oxygen – 5. Would the volume of each substance change if each were moved into a larger container? Volume stays the same? Volume changes? If so, how? EXPLAIN!! a. wood – b. salad oil – c. oxygen – 6. All of the symbols below follow the rules for writing chemical symbols except a. Ga c. S b. Li d. nI 7. Which of the following tables correctly matches the element with its symbol? a. c. Element Symbol Sodium Boron Helium S B H Element Symbol Fluorine Uranium Iodine Fl U Io b. d. Element Symbol Carbon Calcium Copper C Ca Cu Element Symbol Silver Gold Lead He Au Le Study guide due MONDAY, October 20 8. The graph below shows the chemical makeup per grams in a chemical reaction. What is the total mass of oxygen and hydrogen in the reaction? Record your answer in the griddable. Key Symbol O Cl H Na 50 40 30 20 10 Mass 42 g 40 g 13 g 5g 0 Oxygen Chlorine Hydrogen Sodium 9. Classify these everyday examples as an element, compound, or mixture: (a) spaghetti sauce (g) glass (b) table sugar (h) river water (c) cough syrup (i) nitrogen (d) silver (j) a pine tree (e) orange juice (k) oxygen (f) iced tea (l) air 10. Label each picture as either: A. Element B. Compound C. Mixture of elements D. Mixture of compounds E. Mixture of elements AND compounds chemical formula number of atoms for each element ZnCO3 NH4NO3 C13H9N3O5 AgNO3 FeCl2 Study guide due MONDAY, October 20 total atoms