On the graph: A represents the
B represents the
C represents the
D represents the

- energy of reactants
- energy of products
- activation energy
- activated complex

If the atomic mass of an atom is 34 and the atom contains 13 protons, how many neutrons does the atom contain?

The formation of a solid, also known as a is an indication of a chemical change. precipitate particulate particle powder

Which statement is true about a catalyst? a: a catalyst decreases the rate of the reaction. b. a catalyst is consumed during a chemical reaction. c. a catalyst lowers the activation energy of a reaction. d. a catalyst increases the reactant concentration during a reaction.