Which statement describes an exothermic reaction? A. Energy is absorbed by the reaction.
B. Energy is released by the reaction.
C. No energy is transferred by the reaction.
D. Energy is created in the reaction.

Which type of reaction always has an element and a compound as reactants

Identify which properties could correspond to solids, plasmas, or both. maintain a unique shape. collide infrequently with other particles. have very high velocities. conduct electricity. protons. have a low temperature. has long-range order.

Asolution contains 225 g of sodium chloride, nacl, dissolved in enough water to make a 0.25 l of solution. what is the molarity of the solution?