Name: ______Date: ______Period:______
Chapter 14 Test Review
1. What are four signs of a chemical reaction?
2. What is proof that a chemical reaction occurred?
3. What holds atoms together?
4. What are the substances that take part in a chemical reaction?
5. What is produced in a chemical reaction?
6. How does the product compare to the reactants?
7. State the law of conservation of mass.
8. How do we show that mass is conserved in a chemical reaction?
9. State the law of conservation of energy.
10. What must happen for a chemical reaction to occur?
11. What are four ways to increase the rate of a chemical reaction?
12. What is a substance that slows down a reaction?
13. What is the minimal amount of energy necessary for a substance to react?
14. What type of reaction gives off energy?
15. What type of reaction takes in energy?
16. What type of reaction needs a constant supply of energy to continue?
17. What is a catalyst?
18. What is an enzyme?
19. In what type of reaction do ions in two compounds switch places?
20. In what type of reaction do two or more substances combine to form a new substance?
21. In what type of reaction does one reactant form more than one product?
22. In what type of reaction does a more reactive element take the place of a less reactive element?
23. What numbers represent a subscript? (H2O)
24. What type of reaction is represented below?
CO2 + H2O + energy à C6H12O6 + O2
25. What type of reaction is represented below?
C6H12O6 + O2 à CO2 + H2O + energy
26. What type of reactions are represented below?
27. _____The correct name for NO is…
- Nitrogen monoxide
- Mononitrogen monoxide
- nitrogen oxygen
- nitrogen oxide
28. _____Which of the following is an example of a diatomic molecule?
a. CO c. H2O
b. O2 d. H2S
29. _____The correct formula for carbon nonachloride is…
- CCl3 c. CCl
- C9Cl d. CCl9
30. ______What is the charge of an Boron ion that has 5 protons and 8 electrons?
a. 1+
b. 2+
c. 3+
d. 3-
31. _____ What does a prefix in a chemical formula tell you about an element?
a. number of atoms
b. number of chemicals
c. number of molecules
d. number of elements
32. _____ What happens in an exothermic reaction?
a. energy is destroyed
b. energy is released
c. energy is created
d. energy is taken in
33. _____ Which of the following is an example of a double-displacement reaction?
a. Fe + 2HCl à FeCl2 + H2
b. 2Mg + O2 à 2MgO
c. 2H2O2 à 2H2O + O2
d. NaOH + HCl à NaCl + H2O
Write the correct prefix for each:
One = Six =
Two = Seven =
Three = Eight =
Four = Nine =
Five = Ten =
Write the name for the following covalent compounds.
1. N2O 2. HBr5
3. C4F8 4. H2S9
Write the formula for the following covalent compounds.
1. Carbon Tetrafluoride 2. Pentasulfur monohydride
3. Hexanitrogen decaoxide 4. Triphosphorus heptabromide
Determine what ionic compound is formed. (Do the criss-cross) AND name each
1. K and S
2. Ca and P
3. Be and Se
4. Li and Cl
Balance the following equations
1. ___ H2 + ___O2 à ___H2O 2. ____ P4 +____ O2 à ____P2O5
3. ____Zn + ___HCl à ___ZnCl2 + ___H2 4. ___N2 + ___O2 à ___N2O
5. ____ C10H16 +____ Cl2 à ____C + ____ HCl 6. ____K + ___Br2 à ___KBr
7. ____ Fe +____ O2 à ____Fe2O3 8. ____ Al +____ FeO à ____Al2O3 + ____ Fe