lesson 2.4 review\n1. what changes occur to chemical bonds during a chemical reaction?\n2. how does the…

lesson 2.4 review\n1. what changes occur to chemical bonds during a chemical reaction?\n2. how does the change in energy of a chemical reaction predict whether or not the reaction will occur?\n3. explain the role of enzymes and how they affect the chemical reaction of living things.

lesson 2.4 review\n1. what changes occur to chemical bonds during a chemical reaction?\n2. how does the change in energy of a chemical reaction predict whether or not the reaction will occur?\n3. explain the role of enzymes and how they affect the chemical reaction of living things.

Answer

Brief Explanations:

  1. Bonds break and form.
  2. Reactions with negative - energy change (exergonic) tend to occur spontaneously.
  3. Enzymes are catalysts, lowering activation energy, speeding up reactions.

Answer:

  1. Chemical bonds break and new ones form.
  2. Exergonic (negative - energy change) reactions are likely to occur.
  3. Enzymes catalyze reactions in living things by lowering activation energy.