Chapter 7: Chemical Reactions

Substance that speeds up a chemical reaction but is not used up itself or permanently changed.

• enzyme

• catalyst

• activation energy

• chemical reaction

Chemical reaction in which heat energy is absorbed.

• exothermic reaction

• endothermic reaction

• chemical reaction

• inhibitor

Tags

NGSS.HS-PS1-4

Chemical reaction in which heat energy is released.

• activation energy

• catalyst

• endothermic reaction

• exothermic reaction

Tags

NGSS.HS-PS1-4

Substance that forms as a result of a chemical reaction.

• chemical reaction

• product

• reactant

• chemical equation

Measure of how fast a chemical reaction occurs.

• endothermic reaction

• exothermic reaction

• rate of reaction

• chemical reaction

Tags

NGSS.HS-PS1-5

Substance that exists before a chemical reaction begins.

• product

• concentration

• chemical reaction

• reactant

Tags

NGSS.MS-PS1-5

NGSS.MS-PS1-2

________________________ is a state in which a reversible chemical reaction is proceeding in both directions equally. A chemical equilibrium is shown with two arrows going in opposite directions.

• chemical equation

• chemical equilibrium

• Le Chatelier's principle

Tags

NGSS.HS-PS1-6

A balanced equation tells you the _________ __________, or proportion of reactants and products, in a chemical reaction.

• mole ratio

• chemical equation

• chemical reaction

__________________ are catalysts in biochemical reactions used in living things.

• Enzymes

• Catalysts

• Amylase

If a change is made to a system in chemical equilibrium, the equilibrium shifts to oppose the change until a new equilibrium is reached. This is known as _______________________ ___________________.

• Le Chatelier's principle

• Pascal's principle

• Chemical reaction

Tags

NGSS.HS-PS1-6