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Synthesis/Combination Rxn

Total questions: 15

Worksheet time: 29mins

Name
Class
Date
1.

Which of the following is an example of synthesis? Select all that apply.

a)

Na + Br2 → NaBr

b)

KClO3 → KCl + O2

c)

HgO + Cl2 → HgCl + O2

d)

Cl2 + NaBr → NaCl + Br2

e)

Ca + I2 → CaI2

2.

Balance the following:

____ Fe + ____ Cl2 → ____ FeCl3

a)

1,1,2

b)

1,3,1

c)

2,2,3

d)

2,3,2

e)

2,2,1

3.

Balance the following:

____ Al + ____ O2 → ____ Al2O3

a)

2,3,4

b)

4,3,2

c)

1,1,2

d)

2,1,1

e)

2,3,1

4.

Which equation is balanced?

a)

3P4 + 1O2 → 2P2O3

b)

1P4 + 1O2 → 2P2O3

c)

1P4 + 3O2 → 2P2O3

d)

1P4 + 2O2 → 3P2O3

e)

1P4 + 2O2 → 2P2O3

5.

The following is what type of reaction:

NH3 + HCl → NH4Cl

a)

Synthesis

b)

Decomposition

c)

Single Replacement

d)

Double Replacement

e)

Combustion

6.

Balance this equation:

__Li + __Cl2 → __LiCl

a)

2Li + Cl2 → 4LiCl2

b)

2Li + Cl2 → LiCl2

c)

2Li + Cl2 → 2LiCl

d)

2Li + 2Cl2 → 2 LiCl2

e)

2Li + 2Cl → 2 LiCl

7.

Predict the product:

Mg + N2 → ?

a)

Mg3N2

b)

MgN

c)

Mg2N3

d)

MgN2

e)

Mg2N

8.

What coefficients are needed to balance... __P4 + __O2 →__P2O3

a)

1,3,2

b)

1,1,1

c)

1,2,3

d)

2,1,2

e)

1,2,2

9.

Predict the product:

Ca + S8 → ?

a)

CaS

b)

CaS8

c)

Ca2S

d)

Ca2S3

e)

Ca2S2

10.

Predict the product:

Ba + P4 → ?

a)

Ba3P2

b)

BaP

c)

Ba2P

d)

Ba2P3

e)

Ba2P2

11.

Predict the product:

K + O2 → ?

a)

K3O2

b)

KO

c)

K2O

d)

K2O3

e)

K2O2

12.

Predict the product:

Sr + Br2 → ?

a)

Sr3Br2

b)

SrBr

c)

Sr2Br

d)

Sr2Br3

e)

SrBr2

13.

Predict the product:

Na + N2 → ?

a)

Na3N2

b)

NaN

c)

Na3N

d)

Na2N3

e)

NaN2

14.

Predict the product of the reaction between barium and selenium.

a)

BaSe

b)

BaSe2

c)

Ba2Se

d)

Ba2Se3

e)

Ba3Se2

15.

Predict the product of the reaction between cesium and chlorine.

a)

CsCl

b)

CsCl2

c)

Cs2Cl

d)

Cs2Cl3

e)

Cs3Cl2

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