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Number 1. A chemical reaction that releases energy

Correct Answer: Exergonic reaction

Number 2. A chemical reaction that requires more energy to cause the reaction than the energy that is released

Correct Answer: Endergonic reaction

Number 3. A reaction that requires added energy in the form of thermal energy to keep going

Correct Answer: Endothermic reaction

Number 4. A reaction that gives off energy primarily in the form of thermal energy

Correct Answer: Exothermic reaction

Number 5. Substances present at the beginning of a chemical reaction, or the original substances.

Correct Answer: Reactants

Number 6. New substances created in a chemical reaction

Correct Answer: Products

Number 7. Exergonic reactions (blank).

Correct Answer: Occur spontaneously

Number 8. Endergonic reactions (blank).

Correct Answer: Do not occur spontaneously

Number 9. Example of an exothermic reaction

Correct Answer: Rusting iron

Number 10. Example of an endothermic reaction

Correct Answer: Cooking an egg

Number 11. A form of energy

Correct Answer: Light, heat, or electricity

Number 12. Example of an exergonic reaction

Correct Answer: Chemiluminescence

Number 13. Example of an endergonic reaction

Correct Answer: Photosynthesis