Question

When the thing is dry its weight is 1 kg and 2kg in wet and afterburn its weight is 3kg above

Answer 1

Explanation:

Burning is a type of oxidation. During burning, a chemical reaction happens between the thing which is burning with Oxizen (O2) in the air resulting the weight to increase.

Example:

1. C + O2 = CO2

2. 2Ca + O2 = 2CaO etc.