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Chapter 14-15 Test Q&A Creation

Create 5 questions and answers for the upcoming test covering compounds, chemical reactions, crystals and polymers, and acids and bases.

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Chapter 14-15 Test Q&A Creation

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  1. Agenda 3/19: HW: Create Q and A for Chapter test. Chapter 14-15 test on Wednesday 3/25. Robotics Club today at 3:30 pm.Warm-up: WRITE AND BALANCE THE EQUATION Table of Contents for Interactive Notebook Unit: 4 Chapter 12-15 1. P + O2 P4O10 reactants product Complete your cornell notes on acids and bases.

  2. 66 WARM-UP: WRITE AND BALANCE THE EQUATION 1. P + O2 P4O10 reactants product Create Q and A for chapter 14-15 • Create at least 5 questions and answers to what you think will be on the test. • Compounds • Chemical reactions • Crystals and polymers • Acids and Bases

  3. 67 Chapter 14-15 Test ReviewStudy GuideClass Set. Do not write on this. Write all of your answers in your notebook.

  4. 1. What is the name of the indicated atom in the acetic acid molecule shown below? O CH3 O H C 2. Copper (Cu) reacts with oxygen (O) to form copper oxide (CuO). Explain whether CuO will have similar properties to Cu, O, to both, or to neither.

  5. A 1B 2 C 3 D 4 3. The following equations represent chemical reactions. Which equation shows that the total mass during a chemical reaction stays the same? NaOH + H2 H20 Mg + Cl2 MgCl2 NaCl + MgOH NAOH +MgCl2

  6. 4. Which chemical equation indicates a chemical reaction. How do you know? (A) Na + ClNaCl OR (B) Fe(S) Fe(L)

  7. 5. This picture is a cross section of a _____? A polymer B crystal C plastic D protein

  8. 6. Describe the pattern and structure of crystals. REPEATING PATTERN OF POSITIVE AND NEGATIVE IONS 7. What element is best able to combine with itself and Hydrogen (H) to form large molecules? CARBON 8. What characteristic of carbon (C) makes it essential to living organisms? It can bond 4 different ways thus creating variety in compounds

  9. 9. Which of the following compounds is most likely to be part of living organisms? A C6H12O6 B BF3 C MoCl2 D CsI

  10. 10. Balance the equation H2 + O2 H2O 11. What are the reactants?2Mg + O2 2MgO

  11. 12. Using the chart, what would be the mass of CO2 after the chemical reaction?NaHCO3 + CaCl2 CaCO3 + H20 + CO2 • 3705 grams • 205 grams • C. 200 grams • D. 80 grams

  12. 13. You are observing a reaction occurring in a beaker. Which would be the best method for determining whether the reaction is exothermic or endothermic? What is the mass of 3O2? 14. 2Al2O3 4Al + 3O2 20g 15g + ?

  13. 15. After Mike added some vinegar to a test powder in a beaker, the mixture started to fizzle and changed color. Considering this result, which statement most likely applies? A A chemical change did not occur. B A chemical change produced new substances. C A physical change produced new substances D A physical change usually gives off heat.

  14. 16. When potassium metal is placed in water, it bursts into flames. This reaction is identified as A endothermic B exothermic C neutralizing D reactants 17. How many bonds in CO2? C O O

  15. 18. A student burns 5 grams of oil. She finds that the mass of the product is 1 gram. She concluded that that the total mass of the product decreased in the chemical reaction. Which is the problem with her conclusion? A CH4 B HCl C NaCl D O2 19. Which is an organic compound?

  16. 20. The equation shows which type of process?H2O(L) H2O(S) A Chemical B Physical C Both Physical and Chemical D None of these 21. How many atoms of each element make up 4MgCl2?

  17. 22. Which element is not usually found in molecules that make up living organisms? A C B N C O D Pb 23. Which is not an example of a large molecule made from many smaller parts? A sugar B DNA C enzyme D starch

  18. 24. How many atoms of each element are in 3N3O 25. Which is a carbon-based molecule? A oxygen B salt C sugar D water

  19. 26. Is a liquid with a pH of 6 acidic, basic, or neutral? How do you know? 27. You cut a grapefruit in half and touch a piece of blue litmus paper to the inside of the fruit. What happens to the litmus paper? 28. Which of these is acidic? A. Tums B. shampoo C. orange juice D. saltwater

  20. 29. What two products form when an acid and base mix? 30. How can you neutralize an acid? 31. In a balanced chemical equation, which is true about the number of atoms of each element in the products and in the reactants? 32. What should be balanced in a chemical equation?

  21. 33. Several grams of table salt are dissolved in a beaker of water. How would this change be classified? A. Chemical reaction; heat is usually required to make salt dissolve. B. Chemical reaction; the salt changed form as it dissolved. C. Physical change; no heat was released during the change D. Physical change; the salt and water did not form new substances.

  22. 34. What is the best explanation for the following equation?HCl + NaOH  NaCl + H2O A. The mass before the reaction and the mass after the reaction are not equal. B. The mass before the reaction and the mass after the reaction are equal. C. The properties of the products are the same as the properties of the reactants. D. None of these.

  23. 35.Find the mass of the reactants, products and determine if it meets the law of conservation of mass.A. Reactants 5 grams, Products 5 grams, YesB. Reactants 3 grams, Products 2 grams, NoC. Reactants 7 grams, Products 7 grams, YesD. Reactants 7 grams, Products 7 grams, No

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