Aseries of dominos are stood on end close together so that when one domino is tipped over it will set off a chain reaction of collisions knocking over all the other dominos. which describes the state of each domino before any are knocked over? a. unstable equilibrium b. unstable and not in equilibrium c. stable, but not in equilibrium d. stable equilibrium

Which type of reaction is shown in this energy diagram? energy products activation energy reactants time o a. endothermic, because energy is released to the surroundings o b. exothermic, because energy is absorbed from the surroundings o c. exothermic, because energy is released to the surroundings o d. endothermic, because energy is absorbed from the surroundings