Are changes in states of matter physical or chemical changes? How can you tell?

It’s physical change
bc it’s still gonna be water when u change it to solids, liquids, or gas. It’s not gonna be chemical change bc chemical change is when the whole thing change. For example if I put acid in water
Ik I’m late but I hope this still help u

You didn’t post the image

There is no reason to think the results are biased or not conducted properly but you should not assume the results are correct just because they were done in a laboratory so the answer would be c. it is likely to be reliable because the results support the conclusion presented.