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Types of Chemical Reactions Part One

Total questions: 27

Worksheet time: 54mins

Name
Class
Date
1.

Without balancing the final equation, predict the products for the synthesis reaction:  Li + Cl2 →Li\ +\ Cl_2\ \rightarrow  ?

a)

LiCl2LiCl_2  

b)

LiClLiCl_{ }  

c)

Li2Cl2Li_2Cl_2  

d)

Li2ClLi_2Cl_{ }  

2.

Without balancing the final equation, predict the products for the synthesis reaction: Mg + Br2 →Mg\ +\ Br_2\ \rightarrow ?

a)

MgBrMgBr  

b)

MgBr2MgBr_2  

c)

Mg2BrMg_2Br  

d)

Mg2Br2Mg_2Br_2  

3.

Without balancing the final equation, predict the products for the synthesis reaction: Al + S8 → ?Al\ +\ S_8\ \rightarrow\ ?  

a)

AlS8AlS_8  

b)

Al3S2Al_3S_2  

c)

Al3S8Al_3S_8  

d)

Al2S3Al_2S_3  

4.

Without balancing the final equation, predict the products for the synthesis reaction: Li + P4 → ?Li\ +\ P_4\ \rightarrow\ ?  

a)

Li3PLi_3P  

b)

LiP3LiP_3  

c)

LiP4LiP_4  

d)

LiPLiP  

5.

What is the final balanced equation for: Ca + F2 → ?Ca\ +\ F_2\ \rightarrow\ ?  

a)

Ca + F2 → CaF2Ca\ +\ F_2\ \rightarrow\ CaF_2  

b)

Ca + F2 → 2CaFCa\ +\ F_2\ \rightarrow\ 2CaF_{ }  

c)

2Ca + F2 → 2CaF22Ca\ +\ F_2\ \rightarrow\ 2CaF_2  

d)

2Ca + F2 → Ca2F22Ca_{ }\ +\ F_2\ \rightarrow\ Ca_2F_2  

6.

The reaction XY ⟶ X + Y is an example of _____.

a)

synthesis

b)

decomposition

c)

single replacement

d)

double replacement

7.

The reaction A + B ⟶ AB is classified as a _____ reaction.

a)

synthesis

b)

decomposition

c)

single replacment

d)

double replacement

8.

What class of reaction best describes the equation below?

2HI ⟶ H2 + I2

a)

synthesis

b)

decomposition

c)

single replacement

d)

double replacement

9.
the starting materials in a chemical reaction
a)
Products
b)
Reactants
c)
Starters
d)
Enders
10.
a substance that is formed as the result of a chemical reaction
a)
Product 
b)
Reactant
c)
Starters
d)
Enders
11.
a substance formed when two or more elements are chemically bonded together
a)
Element Soup
b)
Pure Element
c)
Ion
d)
Compound
12.
tells us the number of atoms of each element in a compound
a)
Coeffecient
b)
Exponent
c)
Chemical Formula
d)
Calculator
13.
the symbolic representation of a chemical reaction
a)
Long Hand
b)
Short Hand
c)
Electron Configuration
d)
Chemical Equation
14.
type of reaction in which two or more elements combine to form a more complex compound
a)
Double Displacement
b)
Single Displacement
c)
Synthesis
d)
Decomposition
15.
A chemical change in which a single compound breaks down into two or more simpler products is called a ______________________.
a)
single-replacement reaction
b)
synthesis reaction
c)
double-replacement reaction
d)
decomposition reaction
16.
Choose the balanced chemical equation for the formation of iron oxide.
a)
2Fe + O2 → 2FeO2
b)
Fe + O2 → FeO2
c)
4Fe + 3O2 → 2Fe2O3
d)
4Fe + O2 → 2FeO2
17.
Which of the following is an example of synthesis?
a)
Na + Br2 --> NaBr
b)
KClO3 --> KCl + O2
c)
HgO + Cl2-->HgCl + O2
d)
Cl2 + NaBr --> NaCl + Br2
18.
What is decomposition?
a)
putting substances together
b)
breaking substances apart
c)
element replacing another element in a compoud
d)
burning of a subtance
19.
What type of chemical reaction is this?
Al(OH)3 → Al2O3  + H2O
a)
Decomposition
b)
Combustion
c)
Synthesis
d)
Single Replacement 
20.
Which coefficients are required to correctly balance the equation: 
C2S2 + O2 → CO2 + S2O
a)
1, 2, 3, 2
b)
2, 5, 4, 2 
c)
2, 4, 5, 2
d)
2, 3, 5, 2 
21.

Balancing the following:

____ Al + ____ HCl → ____ AlCl3 + ____ H2

a)
1,3,1,2
b)
2,3,2,3
c)
2,6,2,3
d)
3,2,6,2
22.
The number of atoms you begin with in a chemical reaction ...
a)
must be the same as the number of  atoms you end with
b)
must be an even number
c)
can be different to the number you finish with
d)
changes depending on how much energy is formed
23.

Balance the following:

____ H2SO4 + ____ NaNO2 → ____ HNO2 + ____ Na2SO4

a)
1,1,2,1
b)
1,2,2,1
c)
2,3,3,2
d)
4,3,2,1
24.
Balance the following: Fluorine and Aluminum oxide react to produce Aluminum fluoride and Oxygen
a)
6,2,4,3
b)
3,4,2,6
c)
5,1,3,2
d)
3,2,4,3
25.

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

26.

The symbol for a substance dissolved in solution is ______

a)

(s)

b)

(l)

c)

(aq)

d)

(g)

27.

Predict the products for the decomposition of aluminum oxide, Al2O3 →

a)

Al + O2

b)

O + Al2

c)

Al2 + O3

d)

Al + O