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Chemical reactions

TermDefinition
Chemical reaction any change where one or more substances are converted into new substances
reactants starting substance
products new substances that are made
chemical equation way to describe a chemical reaction by using chemical formula symbols and substances
law of conservation of mass mass cannot be created or destroyed
what’s the rule for the law of conservation of mass You must end up with the same number of atoms of each element as you started with
coefficient numbers that represent the number of units of each substance involved in a reaction
mole amount of a substance that contains 6.02 x 10 to the 23rd, particles of that substance
molar mass mass in grams of one mole of a substance, equal to the atomic mass
combustion reactions substance reacts with oxygen to produce energy in the form of heat and light
synthesis reaction 2 or more substances combine to form 1 new substance - A+B—> AB
Catalyst substance that speeds up the rate of a chemical reaction
decomposition reaction one substance breaks down decomposes to form two separate substances - AB—> A+B
sing;e replacement one element replace another element in a compound - A+BC —> AC+B
double replacement positive ion of one compound replaces positive ion of another to form 2 new compound - AB+CD —> AD+CB
Created by: user-2009840
 

 



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