What mass of water is produced when 8.0g of hydrogen reacts with excess oxygen?

A. 8.0g
B. 16.0g
C. 36.0g
D. 72.0g

Correct Answer:

Option D = 72.0g

Explanation

2H₂ + O₂ ⇒ 2H₂O

From the equation:

4g of Hydrogen produces 36g of water

: 8g of Hydrogen will produce 72g of water