What does the enthalpy of reaction measure? O A. The amount of energy required to raise the temperature of a
substance
O B. The amount of energy required to make a chemical reaction
happen
O c. The amount of energy that is used or released as heat in a
reaction
O D. The amount of energy stored in the chemical bonds of the
reactants

C

Explanation:

It's used to mesure energy used in ectothermic and endothermic reaction s

adding or remove a gaseous reactant or product changes the concentrations. if the concentration of reactant or product is increased, the system will shift away from the side in which concentration was increased (i.e. if the concentration of reactants is increased, the system will shift toward the products. if more products are added, the system will shift to form more reactants). conversely, if the concentration of reactant or product is decreased, the system will shift toward the side in which concentration was decreased (i.e. if reactants are removed, the system will shift to form more reactants. if the concentration of products is decreased, the equilibrium will shift toward the products).

explanation:

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