What are the final or new substances (molecule) in a chemical equation called?

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.

What effect does a decrease in temperature have on the overall rate of a chemical reaction? a decrease in temperature decreases . the reaction rate will

What is the ph of a 0.0010 m hno3? 1.0 3.0 4.0 5.0