Answer: So air, like most other substances, expands when heated and contracts when cooled. Because there is more space between the molecules, the air is less dense than the surrounding matter and the hot air floats upward.
Answer:
The answer is baking the cake batter.
Explanation:
If you mix cake batter, you are only producing a physical change. You aren't changing anything about the molecule combinations. When you bake, it causes molecules to adhere or stick to other molecules that wouldn't normally combine. Hope this helps!
Answer:
C- homogeneous mixture
Explanation:
its made up of multiple elements that aren't chemically combined.
you cannot see the parts of the mixture
