Question

In which of the following cases will the mass of the substance changes ?
1. the freezing of water
2. the burning of wood
3. the glowing of an electric bulb
4.the melting of ice

Answer 1

Answer:

Step-by-step explanation:

Burning of wood changes mass of wood because in combustion mass is lost as smoke, ash..etc

But overall mas s does not change including the released mass

Answer 2

Answer:

2) burning of wood is the answer as it turns into ash but yea overall mass doesn't get affected