This is a substance that cannot be broken down further by chemical means

Hydrogen and helium are both members of?

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

Acorporation gives out its profits as dividends paid to whom?