Intro to Chem Ch. 7 Textbook

7. Write a chemical equation for magnesium metal combining with bromine liquid to give magnesium bromide solid.

Mg (s) + Br2 (l) --> MgBr2 (s)

16. a type of reaction in which two cations in different compounds exchange anions

m. double replacement reaction

22. an ionic compound produced by an acid-base reaction

t. salt

11. Write a chemical equation for the reaction of cadmium metal with aqueous cobalt (II) nitrate to produce aqueous cadmium nitrate and cobalt metal.

Cd (s) + Co(NO3)2 (aq)--> Cd(NO3)2 (aq) + Co (s)

15. Write a chemical equation for the reaction of nitric acid with aqueous ammonium hydroxide to give aqueous ammonium nitrate plus water.

HNO3(aq) + NH4OH (aq) --> NH4NO3 (aq) + H2O (l)

13. Write a chemical equation for the reaction of aqueous solutions of lithium iodide and silver nitrate to give silver iodide precipitate and aqueous lithium nitrate.

LiI (aq) + AgNO3 (aq) --> AgI (s) + LiNO3 (aq)

9. Write a chemical equation for solid zinc hydrogen carbonate decomposing to yield solid zinc carbonate, water, and carbon dioxide gas.

Zn(HCO3)2 (S) --> ZnCO3 (s) + CO2 (g) + H2O (g)

3. Which of the following is evidence for a chemical reaction? a) Mixing two aqueous solutions produces a precipitate b) Mixing two colorless solutions gives a blue solution

a) chemical reaction b) chemical reaction

5. Which of the following is evidence for a chemical reaction? a) Dropping sodium metal into water gives a yellow flame. b) Dropping iron metal into acid produces gas bubbles

a) chemical reaction b) chemical reaction

1. Which of the following is evidence for a chemical reaction? a) Heating copper in air produces a black solid b) Heating copper in a vacuum gives red-brown film.

a) chemical reaction b) physical change

21. Classify each reaction in Exercise 17 as one of the following: combination, decomposition, single replacement, double replacement, or neutralization.

a) combination b) decomposition c) single replacement d) double replacement e) neutralization

23. Classify each reaction in Exercise 19 as one of the following: combination, decomposition, single replacement, double replacement, or neutralization.

a) neutralization b) double replacement c) single replacement d) decomposition e) combination

20. a substance that releases hydrogen ions in water

a. acid

19. a metal that reacts with water at room temperature

b. active metal

18. a relative order of metals arranged by their ability to undergo a reaction

c. reactivity series

4. a substance dissolved in water

d) aqueous solution

21. a substance that releases hydroxide ions in water

e. base

9. a substance that speeds up a reaction without being permanently changed

f) catalyst

6. a representation using formulas and symbols to describe a chemical change

g) chemical equation

1. the process of undergoing a chemical change

h. chemical reaction

11. a digit in front of a chemical formula that helps to balance a chemical equation

i) coefficient

13. a type of reaction in which two substances produce a single compound

j. combination reaction

14. a type of reaction in which a single compound produces two or more substances

k. decomposition reaction

10. a particle composed of two nonmetal atoms

l. diatomic molecule

3. a chemical reaction that absorbs heat energy

n. endothermic reaction

2. a chemical reaction that releases heat energy

o. exothermic reaction

17. a type of reaction in which two cations in different compounds exchange anions

p. neutralization reaction

5. an insoluble solid substance produced from a reaction in aqueous solution

q) precipitate

8. a substance resulting from a chemical reaction

r) product

7. a substance undergoing a chemical reaction

s) reactant

15. a type of reaction in which a more active metal displaces a less active metal from a solution

u. single replacement reaction

12. a digit in a chemical formula that represents the number of atoms or ions appearing in the substance

v) subscript