Write the kind of change against the following 1. tearing of paper 2.rottening of eggs 3.Melting of wax 4.Burning of wax candle 5.Rusting of iron 6.curdling of milk 7.Growth in a child?

Answer 1

1. This is ambiguous it could be said to be a chemical change because the intermolecular forces between strands of cellulose are broken. however simplistically it might be said to be merely physical.

2. Chemical change.

3. Physical change specifically a change in state of matter.

4. Chemical change. This is a combustion reaction.

5. Chemical change. Iron (Fe) reacts with oxygen (O)

6. Chemical change. This is a modification of the proteins in the milk usually by the enzyme trypsin.

7. again a bit ambiguous As humans are made up of chemicals and nutrients need to be digested and deposited for growth it is justifiable chemical however simplistically it is physical.