Honors Chemistry
Name: ___________________________ Period: ___
Date: ______________
Ch. 3-4 – Chemical Reactions: Word Equations & Predicting Products Review # 2
Synthesis – Decomposition - Combustion
1) These elements in water produces a hydroxide, hydrogen gas releasing great amount of heat:
a) alkali metals
b) alkaline earth metals
c) halogens
d) rare earth
2) A sample of zinc nitride when heated decomposes into …
a) Zn + N2
b) Zn3 + N2
c) Zn + N
d) ZnN2
3) Combining fluorine with hydrogen gas produces …
a) F2H2
b) FH
c) HF
d) H2F
4) When beryllium is exposed to hydrogen gas, the product of the reaction is:
a) BeH
b) HBe
c) BeH2
d) H2B
Predict the products, then balance the following chemical reactions:
5) ____ C5H11OH +
____O2

6) Zinc reacts with oxygen gas 
7) A ribbon of magnesium reacts with iodine gas 
8) _____ Fe2O3

9) A piece of sodium oxide reacts with water 
10) ___ Br2
+ ____ H2

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Redox - Single Replacement Rxns.
a) Indicate whether or not the reaction will proceed by using the activity series of metals. If the reaction
does not occur, write NR (no reaction!). If the reaction will occur, predict the products and balance the
resulting equation.
b) Indicate which substance is oxidized and which substance is reduced.
1) Cobalt metal is mixed in a solution of magnesium fluoride 
2)
_____ Zn
+
____ HCl

3) Sodium metal reacts with magnesium chloride 
4) _____ Rb + ____ H2O 
5) A piece of zinc is placed in a beaker of nitric acid 
6) Based on the Activity Series of Metals, which statement is correct?
a) gold can be easily oxidized/corroded when exposed to a solution of lead(IV) chlorate.
b) platinum can be oxidized/corroded by a solution of HCl.
c) aluminum can is safe (will not be oxidized!) to store solutions of copper(I) sulfate.
d) a can of zinc will be oxidized/corroded when a solution of nickel nitrite is stored in it.
7) Which metal would be best to be used as a container to store solutions of lead (II) chlorate?
a) nickel
b) iron
c) zinc
d) aluminum
e) copper
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Metathesis / Double Replacement – Neutralization Rxns.
a) Write the possible outcome of the reactions and balance the reactions.
b) Use the Solubility of Aqueous Solutions chart to determine which of the products of the reactions are
soluble and which ones are precipitate. Write (aq) for soluble compounds, (s) for precipitates, (l) liquids.
c) If all the products are soluble, reaction does not happen since all the ions remain dissolved in the solution.
If the reaction will NOT occur, write NR (no rxn).
d) For a Metathesis/DR/Neutralization reaction to occur, it needs to produce either a precipitate, a gas, or
water. If the reaction occurs, write ME, CIE and NIE.
e) Indicate the Spectator Ions.
1) _____ CaCl2 (
) + ___ K2SO4 (
) 
2) Iron(III) chlorate is mixed in a solution of calcium chromate 
3) Sulfuric acid is neutralized by a solution of potassium hydroxide 
4) Indicate which one of the following aqueous reactions will produce a precipitate out of solution?
a) HNO3 + KOH →
c) NaF + CaI2 →
b) Fe(ClO3)2 + MgSO4 →
d) BaCl2 + NaOH →
5) Which ion(s) is/are the spectators ions when an aqueous solution of ZnCl2 reacts with MgCrO4 with the
formation of ZnCrO4 precipitate?
a) Zn2+ only
b) Zn2+ and crO42-
c) Mg2+ and Cl
-
d) CrO42- and Cl
-
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