Which of the following is a chemical change?

A: boiling of water
B: melting a cube of ice
C: dissolving 10 grams of salt in water
D: splitting water into hydrogen and oxygen

Respuesta :

Hi I'm in Chemistry too this year,
I believe D is correct because usually physical changes are things like density, color or quantity.
d splitting water into hydrogen and oxygen yes because there is a chemical reaction with the molecules that changes the water