Chapter 19 Quiz Review

Multiple Choice

A chemical reaction that requires heat

• Exothermic Reaction

• Endothermic Reaction

• Exergonic Reaction

• Endergonic Reaction

Multiple Choice

The starting materials in a reaction

• exergonics

• collisions

• products

• reactants

Multiple Choice

Mass cannot be created or destroyed in ordinary chemical changes

• Law of Cosmic Expansion

• Law of Motion

• Law of Conservation of Mass

• Law of Relativity

Multiple Choice

Chemical Reaction in which heat is released to the surroundings

• exothermic

• endothermic

• exergonic

• endothermic

Multiple Choice

Reaction where energy is given off

• exothermic

• endothermic

• exergonic

• endergonic

Multiple Choice

Reaction where energy is absorbed

• exothermic

• endothermic

• exergonic

• endergonic

Multiple Choice

Chemical reaction that takes place when two reacting molecules collide with sufficient kinetic energy

• Catalyst Model

• Endergonic Model

• Inhibitor Model

• Collision Model

Multiple Choice

A state in which a reaction and its reverse are occurring at equal rates

• Equilibrium

• Catalyst

• Inhibitor

• Collision

Multiple Choice

Used to slow down a reaction

• Catalyst

• Inhibitor

• Reactant

• Product

Multiple Choice

In a chemical reaction, the starting chemicals are called _______.

• reactants

• products

• inhibitors

• catalysts

Multiple Choice

The process by which one or more substances change to produce one or more different substances is called a _______.

• chemical reaction

• collision model

• law of conservation of mass

• product