Question

4g of hydrogen are ignited with 4g of oxygen .The weight of water is

Answer 1

4.5 grams of water is formed

Answer 2

Answer:

4.5 g

Explanation:

The balanced chemical reaction is 2H

2

+O

2

→2H

2

O.

4 g of hydrogen will react with

4

4×32

=32 g of oxygen.

However, only 4 g of oxygen are present.

Thus, oxygen is the limiting reagent.

4 g of oxygen will give

32

4×36

=4.5 g of water.