Unit 8 Practice Test
name:__________________ per:__
Balance these reactions:
1.
___LiBr + ___Co(SO3)2  ___Li2SO3 + ___CoBr4
2. ___B2Br6 + ___ HNO3  ___B(NO3)3 + ___HBr
3. ___BF3 + ___Li2SO3  ___B2(SO3)3 + ___LiF
Reaction A: From this description, write the word equation, the formula equation, and the
balanced chemical equation: “Potassium bromide plus iron (III) hydroxide react to yield potassium
hydroxide and iron (III) bromide” (what kind of reaction is it?  _____________________)
1.
Write the word equation:
2. Write the formula equation:
3. Write the balanced chemical equation:
Reaction B: From this description, write the word equation, the formula equation, and the
balanced chemical equation: “Nitric acid reacts with iron (III) sulfide to produce hydrogen sulfide
plus iron (III) nitrate.” (what kind of reaction is it? ______________________________)
1.
Write the word equation:
2. Write the formula equation:
3. Write the balanced chemical equation:
Reaction C:
1. Complete the word equation: (what kind of reaction is it? _______________________)
Iron (III) carbonate 
2. (from part 1, above) Write the formula equation:
3. (from part 2, above) Write the balanced chemical equation:
Reaction D:
1.
Complete the word equation: (what kind of reaction is it? ________________________)
Benzene (C6H6) + oxygen 
2.
(from part 1, above) Write the formula equation:
3. (from part 2, above) Write the balanced chemical equation:
Things to know: [hint: we read p. 346-367 in the textbook]
1. Vocabulary: precipitate, subscripts, coefficients, Law of Conservation of Mass, product,
reactant, word equation, formula equation (or “skeleton equation”), balanced chemical
equation, “replacement” reactions (single, double), combination/synthesis, decomposition,
electrolysis, the “seven diatomic elements” (Have No Fear Of…), and activity series (listing
in order the activity/reactivity of cations, for instance)
2. What is a “base”?
3. Know how to take a reaction description and convert it to:
a. A word equation, then
b. A formula/”skeleton” equation (just get the formulas; equation is not yet balanced)
c. A balanced chemical equation
4. Know how to convert the name of a compound to its formula.
5. Know the five basic types of chemical reactions and their basic form (like “Decomposition is:
AX  A + X”)
6. For a given reaction, recognize which type of the five types it is.
7. Know this special case: what happens when hydrocarbons combust?
8. Know how to name acids [p.15 & 16 in the packet]
a. If given a formula, determine the name of the acid
b. If given a name, determine the formula of an acid.
9. Predict what will happen, given only the name(s) of the reactant(s).
a. Complete the word equation;
b. Convert the reactant names to chemical formulas
c. Determine what kind of reaction it is.
d. Figure out what the product(s) will be
e. Balance the chemical equation.
Things to use:
o You will be allowed to use: Your green sheets, a copy of “Reaction Types” and “Activity
Series” (I will give you one of these for the test), and a copy of the Periodic Table to use (I
will give you one)
o You will not need a calculator on this test.
o Bring a pencil (wouldn’t be a bad idea to have a backup pencil).
o Part of the test will be scantron, part written.