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Chemical Reactions and pH
Created by ftbrady
- 1. 4 types of chemical reactions
- 2. What does the law of conservation of mass say?
- 3. What are coefficients in a chemical equation and where are they found
- 4. What do the subscripts represent in a chemical formula?
- 5. What is the range of the pH scale?
- 6. What is the range for an acid?
- 7. What is the range for a base?
- 8. What is the range for a Neutral?
- 9. Acids taste?
- 10. Bases taste?
- 11. What is a buffer?
- 12. What color does litmus paper turn if it is acidic?
- 13. What color does litmus paper turn if it is basic?
- 14. What is a hydroxide ion?
- 15. When is salt formed?
- 16. When does synthesis occur?
- 17. What is a decomposition reaction?
- 18. What is a single replacement reaction?
- 19. 2 H2O ---> 2 H2 + O2 What are the products and reactants?
- 20. What does the arrow in a reaction mean?
- a. a chemical reaction in which a more reactive element replaces a less active element from its compound
- b. bitter and feel slippery
- c. water is the reactent, Hydrogen& Oxygen are the products
- d. yields or produces
- e. a number in front of the chemical formula. It tells you how many of that kind of element or compound you have
- f. 7
- g. synthesis; decomposition; single replacement; double replacement
- h. the breakdown of one substance into two or more other substances
- i. it is the small-sized number on the bottom right of the element symbol. it represents the number of atoms of the specific element
- j. the mass of a substance at the beginning of a reaction must be the same amount at the end of the reaction
- k. orange - red
- l. green - blue
- m. it is the OH- ion that is found in bases.. It is what is made when water is broken down.
- n. when the negative ions from an acid combine with the positive ions of a base. Not table salt.
- o. 0 - 6.9
- p. sour
- q. solutions that contain ions that react with acids or bases to minimize their effects
- r. when two or more elements or compounds unite to form one compound
- s. 7.1 - 14
- t. the pH scale indicates the concentration of H+ ions in a solution; 0 - 14; 7 is the middle number or neutral point
Chemical Reactions and pH (Answer Key)
Created by ftbrady
- g 1. 4 types of chemical reactions
- j 2. What does the law of conservation of mass say?
- e 3. What are coefficients in a chemical equation and where are they found
- i 4. What do the subscripts represent in a chemical formula?
- t 5. What is the range of the pH scale?
- o 6. What is the range for an acid?
- s 7. What is the range for a base?
- f 8. What is the range for a Neutral?
- p 9. Acids taste?
- b 10. Bases taste?
- q 11. What is a buffer?
- k 12. What color does litmus paper turn if it is acidic?
- l 13. What color does litmus paper turn if it is basic?
- m 14. What is a hydroxide ion?
- n 15. When is salt formed?
- r 16. When does synthesis occur?
- h 17. What is a decomposition reaction?
- a 18. What is a single replacement reaction?
- c 19. 2 H2O ---> 2 H2 + O2 What are the products and reactants?
- d 20. What does the arrow in a reaction mean?
- a. a chemical reaction in which a more reactive element replaces a less active element from its compound
- b. bitter and feel slippery
- c. water is the reactent, Hydrogen& Oxygen are the products
- d. yields or produces
- e. a number in front of the chemical formula. It tells you how many of that kind of element or compound you have
- f. 7
- g. synthesis; decomposition; single replacement; double replacement
- h. the breakdown of one substance into two or more other substances
- i. it is the small-sized number on the bottom right of the element symbol. it represents the number of atoms of the specific element
- j. the mass of a substance at the beginning of a reaction must be the same amount at the end of the reaction
- k. orange - red
- l. green - blue
- m. it is the OH- ion that is found in bases.. It is what is made when water is broken down.
- n. when the negative ions from an acid combine with the positive ions of a base. Not table salt.
- o. 0 - 6.9
- p. sour
- q. solutions that contain ions that react with acids or bases to minimize their effects
- r. when two or more elements or compounds unite to form one compound
- s. 7.1 - 14
- t. the pH scale indicates the concentration of H+ ions in a solution; 0 - 14; 7 is the middle number or neutral point
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