Question: How do you know if a reaction is endothermic?

Which is true of chemicals? a. things containing chemicals always cost a lot of money. b. chemicals are never dangerous. c. chemicals are in many substances in a home. d. chemicals are rarely found on earth.

What is the relation between concentration of reactants and the rate of chemical reaction?

The nuclear fission process releases neutrons and question 27 options: alpha particles electrons energy beta particles