Question

What happens when a chemical reaction occurs?

Answer 1

When a 'chemical reaction' takes place, the atoms of the reactants or the products reacting bond with each other.

EXPLANATION:

In a chemical reaction, no outside atoms are used and no atoms are created or destroyed. In fact, the 'bonds' between the atoms are broken and then re-arranged in the chemical reaction to make the 'products' of the reaction.

These products are not new products but simply products that have been obtained by the re-arrangement of atomic bonds.

Answer 2

Answer:

When a chemical reaction happens it change into evolution of gas,change in colour and formation of a precipitate occurs