Which of the following describes a physical property of water?

a. water turns into ice at 0" C

b. water reacts violently with sodium

c. if you pass an electric current through it water splits into H2 and 02 molecules

d. water reacts with iron and oxygen to form rust

Which of the following is an example of a homogeneous mixture?

a. air

b. oil floating on the surface of water.

c. granite

d.pizza

For your first question you need to think which one does not change the chemicals involved. You should be able to cross out three of the answers with some thought leaving the correct answer.

For your second question, homogeneous means to be the same throughout. If you think about each you should be able to cross out three of the answers as they are obviously different in different parts.