HC Chem.: Quiz #30 Types of Chemical Reactions II
Metal Reactivity Series: lithium > rubidium > potassium > calcium > sodium > magnesium > aluminum >
manganese > zinc > iron > tin > lead > copper > silver > platinum > gold
Halogen Reactivity Series: F2 > Cl2 > Br2 > I2
Solubility Rules:
1. Nitrates and acetates are generally soluble.
2. Compounds of the alkali metals and the ammonium ion are generally soluble.
3. Chlorides, bromides, and iodides are generally soluble. EXCEPT the halides of Ag +, Hg22+, and Pb2+; also
HgI2, BiOCl, and SbOCl.
4. Sulfates are generally soluble, EXCEPT PbSO4, Sr SO4, and BaSO4 are insoluble. CaSO4, Hg2SO4 are
moderately soluble. The corresponding bisulfates are more soluble.
5. Carbonates, chromates, phosphates, and sulfites are generally insoluble. EXCEPT those of the alkali metals
and ammonium ions are soluble. Many acid phosphates are soluble, i.e., Mg(H 2PO4)2 and Ca(H2PO4).
6. Sulfides are generally insoluble. EXCEPT those of the alkali metals and ammonium ion are soluble. The
alkaline earth metals are soluble. Cr2S3 and Al2S3 decompose and precipitate as hydroxides.
7. Hydroxides are generally insoluble. EXCEPT those of the alkali metals and ammonium ion are soluble. The
hydroxides of Ba, Sr, and Ca are moderately soluble. The hydroxide of Mg is only very lightly soluble.
8. Almost all ionic compounds containing NO2-, ClO4-, ClO3-, ClO2-, and ClO- are soluble.
9. All inorganic acids are soluble. Solubility of organic acids are variable.
1.
Hydrogen chloride and sodium hydroxide react to produce sodium chloride. Another product is
____.(2 points)
Sodium hydroxide.
Hydrogen gas.
Water.
Potassium chloride.
2.
Which of the following statements is NOT true about double-replacement reactions? (2 points)
The product may be a gas.
The reactant may be a solid metal.
The product may be a molecular compound.
The product may precipitate from solution.
3.
What is the formula unit for the new compound produced when aqueous solutions of ammonium chloride
and cobalt(II) sulfate are mixed? (2 points)
Ammonium sulfate.
Not possible since no precipitate is produced.
None of these.
cobalt(II) chloride.
4.
What is the driving force in the reaction of:
Ni(NO3)2(aq) + K2S(aq) -----> (2 points)
Ionic compounds are products.
A gas is formed.
Ionic compounds are reactants.
A precipitate is formed.
5.
Which of the following ionic compound is soluble in water? (2 points)
Hg2Br2
(NH4)2S
Fe(OH)2
PbSO4
6.
When copper(II) bromide and aluminum chloride solutions are mixed, _____. (2 points)
Nothing happens, then precipitate of copper(II) chloride is formed.
Precipitate of aluminum bromide is formed.
Nothing happens.
Precipitate of copper(II) chloride is formed.
7.
Fluorine reacts with sodium hydroxide to form sodium fluoride, oxygen gas and water. What is the
<b>sum</b> of the coefficients in the balanced equation? (2 points)
32
19
21
17
13
8.
What type of the chemical reaction describes the following chemical changes? Silver nitrate aqueous
solution mixed with calcium bromide aqueous solution produced a white precipitate. (2 points)
Synthesis.
Complete combustion.
Double-replacement.
Decomposition.
Single-replacement.
9.
Use the reactivity series of metals to complete a balanced chemical equation:
Ag(s) + KNO3(aq) -----> ? (2 points)
AgNO3 + K
AgKNO3
No reaction takes place.
AgK + NO3
10. Which of the following statements is true about single-replacement reactions? (2 points)
Any metal replaces any other metal.
They are restricted to metals.
Two reactants produce two products.
They involve a single product.
Version A
Answer Sheet
HC Chem.: Quiz #30 Types of Chemical Reactions II
1.
Water.
2.
The reactant may be a solid metal.
3.
Not possible since no precipitate is produced.
4.
A precipitate is formed.
5.
(NH4)2S
6.
Nothing happens.
7.
13
8.
Double-replacement.
9.
No reaction takes place.
10. Two reactants produce two products.