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First 9 Weeks Review

Physical Change no new substance is created. The shape, size, or state of matter will change.
Chemical change produces a new substance that has different properties from those of the original substance
Chemical reaction a process that produces a chemical change
Rate of reaction how fast a reaction occurs after it has started
Catalyst a substance that SPEEDS up a chemical reaction
Inhibitor a substance that SLOWS down a chemical reaction
Endothermic reaction absorbs thermal(heat) energy
Exothermic reaction releases thermal(heat) energy
Reactants substances that exist before the reaction begins. They are found in front of the arrow in an equation
Products substances that form as a result of the reaction. They are found behind the arrow in an equation.
Iron changes to rust in the presence of Oxygen and Water.
Combustion object catches fore with the presence of Oxygen
Food spoilage
Created by: mgrant