Review of the parts of a chemical reaction
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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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 chemical reactions | catalyst
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| CxHy + O2 --> CO2 + H2O | combustion reaction
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| AB --> A + B | decomposition reaction
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| A + B --> AB | synthesis reaction
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| AB + CD --> AD + CB | double replacement reaction
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| AB + C --> CB + A | single replacement reaction
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| numbers that are added to balance a chemical equation | coefficients
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| numbers NEVER changed to balance a chemical equation | subscripts
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| chemical equation that does not have equal # of atoms on both sides | skeleton equation
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| chemical equation that does have equal # of atoms on both sides | balanced equation
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| gas formed, transfer of energy, color change, precipitate forms | clues of chemical change
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| means yields ; shows that chemical reaction is NOT reversible | single arrow
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| Double replacement reactions happen this % of the time | 100%
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| solid made from mixing liquids | precipitate
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| means yields ; shows that chemical reaction goes in both direction | double arrows
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| happens when products and reactants are formed at same rate | equilibrium
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| law of conservation of mass | states that mass is not created or destroyed in a chemical reaction
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| law of conservation of energy | states that energy is not created or destroyed in a chemical reaction
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| monatomic | means 1 atom ; is true for most elements
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| diatomic | means 2 atoms ; H , N, O , F , Cl , Br, I
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| tetratomic | means 4 atoms ; P & As
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| octatomic | means 8 atoms ; S & Se
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| polyatomic | means many atoms
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| Avogadro's number | 6.02 x 10^23 representative particles
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| mole | SI unit for amount of substance
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Created by:
cadetjt
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