Vocab Set #8: Unit 2 Chemistry 4

Any chemical reaction that takes in heat from its environment; endothermic.

• Bonds
• Absorption
• Energy
• Heat

A chemical attraction between the electrons of two or more atoms; what holds atoms together in molecules and compouds.

• Bonds
• Catalyst
• Product
• Reactant

A substance that changes the rate of a chemical reaction but is, itself, unchanged at the end of the process.

• Chemical Reaction
• Bonds
• Catalyst
• Heat

A process in which one or more substances, also called reactants, are converted to one or more different substances, known as products.

• Physical Reaction
• Exothermic Reaction
• Chemical Reaction
• Bonding

A chemical reaction in which energy is absorbed into the reaction; results in a cooler surrounding temperature.

• Endothermic Reaction
• Exothermic Reaction
• Chemical Reaction
• Physical Reaction

The ability to do work or cause a change.

• Heat
• Energy
• Product
• Bonds

A chemical reaction in which energy is primarily given off in the form of heat; results in a higher surrounding temperature.

• Exothermic Reaction
• Endothermic Reaction
• Chemical Reaction
• Physical Reaction

The energy transferred between objects that are different temperatures.

• Thermal Energy
• Temperature
• Heat
• Exothermic

A law that states that matter cannot be created or destroyed in any chemical or physical change. It can only be transferred or transformed.

• Law of Conservation of Energy
• Law of Conservation of the Universe
• Law of Conservation of Matter
• Law of Conservation of Light

The total energy of motion in the particles of a substance; the energy of heat.

• Heat
• Temperature
• Exothermic
• Thermal Energy