Reactions can be endothermic or exothermic. Decide if each statement or picture below is describing an endothermic or exothermic reaction.
Column A
1.
A reaction in which there is a net release of energy from the system into the surroundings.:
A reaction in which there is a net release of energy from the system into the surroundings.
2.
A reaction in which more bond energy is released by the products than is absorbed by the reactants.:
A reaction in which more bond energy is released by the products than is absorbed by the reactants.
3.
A reaction in which there is a net absorption of energy into the system from the surroundings.:
A reaction in which there is a net absorption of energy into the system from the surroundings.
4.
A reaction in which the reactant bonds are stronger than the product bonds.:
A reaction in which the reactant bonds are stronger than the product bonds.
5.
A reaction in which the product bonds are stronger than reactant bonds.:
A reaction in which the product bonds are stronger than reactant bonds.
6.
A reaction in which more bond energy is absorbed by the reactants than is given off by the products.:
A reaction in which more bond energy is absorbed by the reactants than is given off by the products.
7.
:
8.
:
9.
Since heat energy is released to the surroundings, the surroundings will feel warm.:
Since heat energy is released to the surroundings, the surroundings will feel warm.
10.
Since heat energy is absorbed from the surroundings, the surroundings will feel cold.:
Since heat energy is absorbed from the surroundings, the surroundings will feel cold.
Column B
a.Endothermic
b.Exothermic
Column A
1. b. Exothermic
2. b. Exothermic
3. a. Endothermic
4. b. Exothermic
5. a. Endothermic
6. a. Endothermic
7. b. Exothermic
8. a. Endothermic
9. b. Exothermic
10. a. Endothermic