Is mixing paint and water a physical change?

Answer 1

It all depends on the colours and their chemical compositions. It is possible that that the colours have a chemical composition which will react to each other in that case it will be chemical change as the reaction will cause the change in chemical composition.

But if this is not the case and the colours that are mixed don’t have a chemical composition which will react to each other then there will be no change in the chemical composition which means only the the colour shall be changed which means that the change will simply be a physical change.

So, in a way both changes can be valid depending on the compositions of both the substances.

Afternote: If this is from a textbook I don't understand why a question like this would be given because the question seems a bit too versatile.

Answer 2

It depends on the paint. It's not impossible that the pigments in the paints might react chemically. However, it's more likely that they won't, and it will simply be a physical change.

If this came from a textbook, the authors should be smacked with a wet fish; anyone writing a book about chemistry should know better than to ask a question like this.

it is a physical change because when you try to the mix the paint it doesn't make a totally new substance OK

Answer 3

Mixing doesn't change the chemical structure of components.

Answer 4

Ummm... Yeah.

Answer 5

Physical. Simple as that.

Answer 6

colours do change...

Answer 7

Physical.