Question

list any three changes you would observe on heating sugar​

Answer 1

Explanation:

Sugar is made of carbon, hydrogen and oxygen atoms. When heated over a candle, these elements react with the fire to turn into a liquid.

The heat causes the sugar's atoms to combine with the oxygen in the air, forming new groups of atoms.

Energy is released in this chemical reaction in the form of smoke and black soot. Thus there is a change in only physical state.

Answer 2

Explanation:

Changes are as follows:

• change in colour
• change in temperature
• evolution of gas