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CP Chemical Reactions Practice Test

Total questions: 46

Worksheet time: 1hrs 17mins

Name
Class
Date
1.
What does the Law of Conservation of Mass state?
a)
Matter cannot be gained or lost in a chemical reaction.
b)
Matter can only be lost in a chemical reaction.
c)
Matter can only be gained in a chemical reaction.
d)
Matter can be gained and lost in a chemical reaction. 
2.

__ P4 + __ O2 -----> ____P2O5

a)

1, 5, 2

b)

2, 5, 7

c)

2, 1, 5

d)

5, 1, 2

3.

___ Al + ___ Br2 -----> ____ AlBr3

a)

3, 2, 2

b)

2, 3, 2

c)

3, 2, 2

d)

1, 2, 3

4.

___ Cr + ___O2 -----> ____ Cr2O3

a)

3, 2, 4

b)

2, 3, 4

c)

2,1, 5

d)

4, 3, 2

5.

___ NaClO3 ----> ___ NaCl + ___ O2

a)

1, 3, 2

b)

2,3,2

c)

2, 2,3

d)

3, 2, 2

6.

____ H2 + ____ N2 ----> ____ NH3

a)

1, 2, 3

b)

3, 1, 2

c)

3, 2, 1

d)

1, 3, 2

7.

What state of matter is this substance?

a)

solid

b)

liquid

c)

gas

d)

aqueous

8.

Identify the Reactants in this equation.

a)

A

b)

B

9.

Identify the number in blue.

a)

Product

b)

Reactant

c)

Coefficient

d)

Subscript

10.

In what state is this substance?

a)

solid precipitate

b)

dissolved in water

c)

released as a gas

d)

liquid

11.

Which compound is formed as a precipitate in this reaction?

a)

Pb(NO3)2

b)

KI

c)

PbI2

d)

KNO3

12.

To balance a chemical equation, it may be necessary to adjust the

a)

formulas of the products

b)

subscripts

c)

coefficients

d)

number of products

13.
4Si + S8 --> 2Si2S4
a)
Synthesis
b)
Decomposition
c)
Single displacement
d)
Double displacement
14.
3Ca + 2AlCl3 --> 3CaCl2 + 2Al
a)
Synthesis
b)
Decomposition
c)
Single diplacement
d)
Double displacement
15.
The following is what type of reaction:
PbCl2 + AgNO3 → Pb(NO3)2 + AgCl
a)
Synthesis
b)
Decomposition
c)
Single Replacement
d)
Double Replacement
16.
Ions in two compounds switch. 
a)
Synthesis
b)
Combustion
c)
Single Replacement
d)
Double Replacement
17.
What type of chemical reaction is this?
Al(OH)3 → Al2O3  + H2O
a)
Decomposition
b)
Combustion
c)
Synthesis
d)
Single Replacement 
18.
One reactant into several products.
a)
Decomposition
b)
Synthesis
c)
Combustion
d)
Single Replacement
19.
Always starts with a Hydrocarbon that reacts with oxygen and produces carbon dioxide and water. 
a)
Decomposition
b)
Synthesis
c)
Combustion
d)
Single Replacement
20.
What type a reaction is taking place in this picture?
a)
Synthesis
b)
Decomposition
c)
Single Replacement
d)
Double Replacement
21.
C4H12 + O2 → CO2 + H2O
a)
Synthesis
b)
Combustion
c)
Single Replacement
d)
Double Replacement
22.
2Pb(NO3)2   -->   2PbO +  4NO2  +  O2
a)
Synthesis
b)
Decomposition
c)
Single Displacement
d)
Combustion
23.

Which of the following is an example of a synthesis reaction?

a)
b)
c)
d)
24.

Which of the following is an example of a single replacement reaction?

a)
b)
c)
d)
25.
What precipitate forms when you mix lead (II) nitrate with sodium chloride?
a)
sodium nitrate 
b)
lead (II) chloride 
c)
sodium lead
d)
chloride nitrate 
26.
Which is the correct net ionic equation for the reaction of AgNO3 and CaCl2?
a)
Ca2+(aq) +  2Cl- (aq) → CaCl(s)
b)
Ag+(aq)  +  Cl- (aq) → AgCl(s)
c)
Ag +  Cl  →  AgCl
d)
Ag+  +  Ca2+   →Ag2Ca (s)
27.
What are the spectator ions in the reaction of sodium chloride with silver nitrate?
a)
silver and nitrate
b)
sodium and chloride
c)
sodium and nitrate
d)
silver and chloride
28.
In this equation,
CuCl2 + NaOH  → Cu(OH)2 + NaCl
Which product is insoluble?
a)
copper(II) hydroxide
b)
sodium chloride
c)
sodium hydroxide
d)
copper(II) chloride
29.
Which of these results in the formation of a precipitate?
a)
AgNO3(aq)  +  NaOH(aq)→
b)
BaNO3(aq)  +  CaCl2(aq)→
c)
NaNO3(aq)  +  KOH(aq)→
d)
More than one of these form precipitates
30.
What are the spectator ions in this reaction?
CuCl2(aq) + NaOH(aq) → Cu(OH)2(s) + NaCl(aq)
 
a)
Cu2+ and OH1-
b)
Na2+ and Cl2-
c)
Na1+ and Cl1-
d)
Na1+ and OH1-
31.
Which is the name of the kind of solid substance formed in this figure?  
a)
aqueous 
b)
precipitate
c)
acid
d)
synthesis 
32.

If an element is diatomic it should have a subscript of___

a)

1, always

b)

2, only when it is an element

c)

it shouldn't have a subscript, it should have a coefficent

d)

2, when bonded in a compound

33.

What is the charge of Iron in this compound?

Fe3(PO4)2

a)

3+

b)

2+

c)

1+

d)

6+

34.

The symbol for a substance dissolved in solution is ______

a)

(s)

b)

(l)

c)

(aq)

d)

(g)

35.

Predict the products for the this Single Replacement reaction:

K + HCl →

a)

KCl + H2

b)

KHCl

c)

KH + Cl2

d)

HCl + K2

36.

To predict if a single replacement reaction will take place you should use the____________ __________

a)

Activity series

b)

Solubility Chart

c)

Periodic Table

37.

When predicting a double replacement reaction we use the__________ ________ to help us determine if a solid is produced or not

a)

Activity series

b)

Solubility Chart

c)

Periodic Table

38.

What is the name for the solid formed during a reaction?

a)

Precipitate

b)

Rocks

c)

Aqueous

39.

Is the following substance soluble or insoluble?

NaNO3

a)

Soluble

b)

Insoluble

40.

Is the following substance Soluble or insoluble?

AlPO4

a)

Soluble

b)

insoluble

41.

Using the activity series or the reactivity table, will the following reaction occur?
 Zn+ H2O (g) ⟶Zn+\ H_2O\ _{\left(g\right)}\ \longrightarrow  

a)

Reaction occurs

b)

No Reaction

42.

Using the activity series or the reactivity table, will the following reaction occur?
 Ag+ H2O (l) ⟶Ag+\ H_2O\ _{\left(l\right)}\ \longrightarrow  

a)

Reaction occurs

b)

No Reaction

43.

Using the activity series or the reactivity table, will the following reaction occur?
 Na + H2O (g) ⟶Na\ +\ H_2O\ _{\left(g\right)}\ \longrightarrow  

a)

Reaction occurs

b)

No Reaction

44.

Using the activity series or the reactivity table, will the following reaction occur?
 Mg + HCl (aq) ⟶Mg\ +\ HCl\ _{\left(aq\right)}\ \longrightarrow  

a)

Reaction occurs

b)

No Reaction

45.

Using the activity series or the reactivity table, will the following reaction occur? Hg + HCl (aq) ⟶Hg\ +\ HCl\ _{\left(aq\right)}\ \longrightarrow  

a)

Reaction occurs

b)

No Reaction

46.

Which two are the spectator ions?

a)

sodium and chlorine

b)

silver and chlorine

c)

sodium and nitrate

d)

silver and nitrate

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