Question

Reema observed that the heat is produced when water is added to pure (absolute)
alcohol or concentrated sulphuric acid is added to water. Does the process involve a chemical change ?

Answer 1

Explanation:

Heat is produced when water is added to pure (absolute) alcohol or concentrated sulphuric acid is added to water . Does it involve a chemical change ? yes it involves a chemical change because heat cannot be revived to water so it contains a chemical change .

Answer 2

Answer:

yes it can be involved

in chemical changing