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Science Study Guide2
Chapter 2:Chemical Reactions
Term | Definition |
---|---|
Chemical Reaction | changes that make one or more new substances, chemical bonds are formed and/or broken, usually cant be reversed. |
Endothermic Reaction | absorbs energy, lowers the temperature of its surroundings. |
Exothermic Reaction | releases energy in the form of heat, like when fuel is burned. |
Chemical Equation | uses chemical formulas to summarize a chemical reaction. |
Product | substances after the reaction is done. |
Reactant | substances at the beggining |
Coefficent | A numerical measure of a physical or chemical property that is a constant for a system under specified conditions. |
Catalyst | substance that increases the speed if reaction by lowering the activieation energy. |
Inhibitor | slow down reactions by preventing reactants from coming together. |
Combustion | a rapid reaction involving oxygen and a fuel |
Fire Triangle | need fuel, oxygen, and heat for a fire. |