Which of the following is the proper definition of chemistry?

the study of most carbon-containing compounds

Any substance that has a definite composition

Anything that has mass and takes up space

A substance that has particles that are fluid, has an indefinite shape, but a definite volume

A substance that has indefinite shape and indefinite volume

Rusting metal is an example of a ____ change.

Josh decided to mix some vinegar with baking soda. He knew that a reaction occurred because he made careful observations. He noted that the mixture started to foam up and bubble, and it was white in color. How did Josh know that a chemical reaction occurred?

He was sure a reaction occurred because of

Use the basic properties of solids, liquids, and gases to identify the correct state of matter in the image.

What type of substance has low compressibility and high density?