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Chemistry Reactions Review

Total questions: 22

Worksheet time: 16mins

Name
Class
Date
1.

Describe a synthesis reaction

a)

when less complex compounds combine to form a single complex molecule

b)

when a compound breaks down into less complex compounds

c)

when one single element replaces another in a compound

d)

when two reactants exchange ions to yield new products

2.

Describe a double replacement reaction

a)

when less complex compounds combine to form a single complex molecule

b)

when a compound breaks down into less complex compounds

c)

when one single element replaces another in a compound

d)

when two reactants exchange ions to yield new products

3.

Describe a single replacement reaction

a)

when less complex compounds combine to form a single complex molecule

b)

when a compound breaks down into less complex compounds

c)

when one single element replaces another in a compound

d)

when two reactants exchange ions to yield new products

4.

Describe a decomposition reaction

a)

when less complex compounds combine to form a single complex molecule

b)

when a compound breaks down into less complex compounds

c)

when one single element replaces another in a compound

d)

when two reactants exchange ions to yield new products

5.

What type of reaction is this?


S8 + 8O2 -> 8SO2

a)

synthesis

b)

decomposition

c)

single replacement

d)

double replacement

6.

True or False:


H2O and NH4 are always products of a combustion reaction.

a)

True

b)

False

7.

Balance this equation:


C3H8 + O2 -> CO2 + H2O

(a)  

8.

True or False:


When a single replacement reaction occurs, metals will replace metals and nonmetals replace nonmetals.

a)

True

b)

False

9.

Balance this equation:


NaCl + CaO -> Na2O + CaCl2

(a)  

10.

Predict what BaCl2 + K2CO3 will produce.

(a)  

11.

Predict what CuCl2 + NaNO3 will produce.

(a)  

12.

Complete the following skeleton equation (including solubility in the products):


Potassium sulfide and cobalt(II) chloride react to form

(a)  

13.

Complete the following skeleton equation (including solubility in the products):


A solution of Sodium Phosphate combines with a solution of magnesium sulfate

(a)  

14.

Classify this reaction:


CO + O2 -> CO2

a)

synthesis

b)

decomposition

c)

combustion

d)

single replacement

15.

True or False:


A hydrocarbon must be a reactant in a combustion reaction.

a)

True

b)

False

16.

Balance the following equation:


N2 + H2 -> 2NH3

(a)  

17.

According to the following reactivity table, will the following reaction occur?


Ag + KNO3

a)

yes

b)

no

18.

According to the following reactivity table, will the following reaction occur?


Mg + Fe2O3

a)

yes

b)

no

19.

According to the following reactivity table, is lithium more reactive than iron?

a)

yes

b)

no

20.

Will the following reaction occur between Potassium Iodide and Bromine?

a)

yes

b)

no

21.

Predict the product of Br2 + NaF (remember the reactivity table!)

a)

no reaction

b)

NaBr + F2

c)

BrF + Na

22.

What is the best picture of Felipe? (No wrong answer)

a)
b)
c)
d)
e)