Worksheet #2: Synthesis Reactions

Worksheet #2: Synthesis Reactions

In synthesis reactions, two or more reactants come together to form one compound.

A + B ? AB

Complete the following word equations, and write and balance the formula equation.

1.

calcium +

oxygen

?

2.

copper

+

3.

calcium oxide

4.

hydrogen

+

nitrogen

?

5.

hydrogen

+

chlorine

?

6.

silver

sulfur

7.

chromium

+

oxygen

8.

aluminum

+

bromine

9.

sodium

10.

hydrogen

+

11.

aluminum

+

+

sulfur

+

+

copper(II) sulfide

?

water

?

?

iodine

?

?

?

oxygen

oxygen

?

?

calcium hydroxide

Worksheet #2: Synthesis Reactions

1.

calcium

+

oxygen

2Ca

2.

copper

+

+

3.

calcium oxide

+

+

hydrogen

+

5.

hydrogen

7.

silver

+

+

chromium

sodium

hydrogen

aluminum

H2O

ammonia

?

N2

2NH3

?

hydrogen chloride

?

Cl2

Ca(OH)2

?

2HCl

?

?

silver sulfide

16Ag

+

S8

oxygen

+

+

+

+

iodine

+

+

4Al

chromium(III) oxide

3O2

?

2Cr2O3

aluminum bromide

?

3Br2

2AlBr3

?

?

sodium iodide

I2

?

+

oxygen

?

+

O2

oxygen

+

8Ag2S

?

?

bromine

2H2

11.

calcium hydroxide

sulfur

2Na

10.

?

+

2Al

9.

water

chlorine

+

aluminum

8CuS

+

4Cr

8.

?

nitrogen

H2

6.

copper(II) sulfide

S8

+

3H2

2CaO

?

?

CaO

4.

O2

sulfur

8Cu

calcium oxide

?

3O2

2NaI

water

2H2O

?

?

aluminum oxide

?

2Al2O3

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