When driving your car, you hear a squeal every time you press the brakes. You decide the problem is that there's a mouse trapped in the brakes.

This is an example of a .

hypothesis
law
theory

What kind of ion is contained in salts that produce an acidic solution? a positive ion that attracts a proton from water a positive ion that releases a proton to water a negative ion that attracts a proton from water a negative ion that releases a proton to water

Nonmetal halogen family atmoic mass 35

Achange in the number of neutrons in an atom will change an blank . when the number of protons changes in an atom, a new element will form.