Review of the parts of a chemical reaction
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| starting material in a chemical reaction | reactants
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| ending material in a chemical reaction | products
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| speeds up a chemical reaction in nonliving things | catalyst
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| Numbers never changed to balance a chemical equation | subscripts
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| Numbers added to balance a chemical equation | coefficients
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| a chemical equation that has unequal numbers of each element on both sides | skeleton
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| this is conserved (saved) in every chemical reaction | mass & number of atoms
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| use this coefficient if you do NOT want any change to the number of atoms | one
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| says that mass is not created or destroyed in any chemical reaction | law of conservation of mass
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| AB --> A + B | decomposition reaction
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| AB + C ---> CB + A | single replacement reaction
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| A + B --> AB | synthesis (combination) reaction
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| AB + CD --> AD + CB | double replacement reaction
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| CxHy + O2 --> CO2 + H2O | combustion reaction
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| means 2 atoms | diatomic
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| means 8 atoms | octatomic
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| means 4 atoms | tetratomic
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| means 1 atom | monatomic
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| examples of diatomic elements | Br , N , H
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| examples of tetratomic elements | P , As
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| example of octatomic elements | S
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| used to determine if a single replacement reaction will occur | activity series of metals & halogens list
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| reactants are found on this side of the chemical equation | left
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| products are found on this side of the chemical equation | right
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| catalyst are found here in a chemical equation | above the arrow
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| this energy is needed to start a chemical reaction | activation energy
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Created by:
cadetjt
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