Name:
Date:
Reactions and Solubility
Key terms/concepts:
Reaction types:
-
-
Synthesis: two or more substances react to form a larger compound.
Decomposition: One substance reacts to form smaller compounds.
1. (Know specific examples of decomposition reactions.)
Single Displacement: An element exchanges places with an ion of a compound to form a
different compound and element.
1. (Know activity series.)
Double Displacement: The ions from two compounds exchange places in aqueous solutions
to form two different compounds.
Combustion: A compound reacts with oxygen, releasing large amounts of energy int the
form of heat and light.
Steps to producing reaction types:
1.)
2.)
3.)
4.)
5.)
Identify type (Synthesis? Decomposition? Etc…)
Predict products (dependent upon reaction type)
Write formulas (write products and make sure they’re balanced)
Balance equation
Phases of matter (solubility rules)
Things to know:
1.)
2.)
3.)
4.)
Polyatomic ions
Naming compounds
Activity series
Solubility rules
Reaction Practice Problems
Identify type, predict products, balance equation, indicate phases of matter. Also write word
equation.
Na(
+
)
Cl2(
)

Reaction type:
Word Equation:
Fe(
)
+
)
CuSO4(
Reaction Type:
Word Equation:
CH4(
)
+
O2(
)

Cl2(
)

Reaction Type:
Word Equation:
P(
)
+
Reaction Type:
Word Equation:
Cl2(
)
+
NaBr(
Reaction Type:
Word Equation:
KClO3(
)
Reaction Type:
Word Equation:

)

CH4(
)+
CaO (
)
+
O2(
)

Reaction Type:
Word Equation:
NaCl(
+
)
AgNO3(
)
Reaction Type:
Word Equation:
)
HgO(
Reaction Type:
Word Equation:
HCl(
)
+
FeS(
)

Reaction Type:
Word Equation:
Practice Problems
State whether the following compounds are soluble or insoluble
1. KCl
2. PbCl2
3. CaSO4
4. NaOH
5. BaSO4
6. HNO3
7. Pb(OH)2
8. LiBr
Answer Key:
2
Na(s ) + 1
Cl2( g
)
2NaCl(s)
Reaction type: Synthesis
Word Equation: Sodium + Chlorine  Sodium Chloride
1
Fe(s)+ 1
CuSO4(aq)  FeSO4(aq) + Cu(s)
Reaction Type: Single Displacement
Word Equation: Iron + Copper(II)Sulfate  Iron(III)Sulfate + Copper
1
CH4(g)+ 1
O2(g) CO2(g) + 2H2O(liq)
Reaction Type: Combustion
Word Equation: Methane + Oxygen  Carbon dioxide + water
2
K(s) + 1
Cl2(g)  2KCl(aq)
Reaction Type: Synthesis
Word Equation: Potassium + Chlorine  Potassium Chloride
1
Cl2(g) + 2
NaBr(aq) 2NaCl(aq) + Br2(liq)
Reaction Type: Single Replacement
Word Equation: Chlorine + Sodium Bromide  Sodium Chloride + Bromine
2
KClO3(s)  2KCl(s) + 3O2(g)
Reaction Type: Decomposition
Word Equation: Potassium Chlorate  Potassium Chloride + Oxygen
1
CH4(g) + 2
CaO (s) + 1
O2(g)  CO2(g) + 2H2O(liq) + 2Ca(s)
Reaction Type: Combustion
Word Equation: Methane + Calcium oxide + oxygen  carbon dioxide + water + calcium
1
NaCl(s) + 1
AgNO3(aq) NaNO3(aq) + AgCl(s)
Reaction Type: Double Displacement
Word Equation: Sodium Chloride + Silver nitrate  Sodium Nitrate + silver chloride
HgO(s)  2Hg(liq) + O2(g)
2
Reaction Type: Decomposition
Word Equation: Mercury oxide  Mercury and Oxygen
1
HCl(aq) + 1
FeS(s) FeCl2(aq) + H2S(g)
Reaction Type: Double Displacement
Word Equation: Hydrochloric acid + Iron Sulfide  Hydrogen sulfide + Iron Chloride
Solubility Questions:
1.
2.
3.
4.
5.
6.
7.
8.
Soluble
Insoluble
Insoluble
Soluble
Insoluble
Soluble
insoluble
soluble