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13 Cards in this Set
- Front
- Back
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evidence of a reaction
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release gas, formation of a solid (precipitate), heat produced/absorbed, color change
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subtle evidence of a reaction
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light emitted/absorbed, magnetic behavior changes, electrical properties changes.
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types of chemical reactions
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combination, decomposition, single-replacement, double-replacement
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combination reaction
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joining 2 or more elements/compounds.
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decomposition reaction
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produce 2 or more products, reverse of combination.
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single-replacement reaction
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one atom replaces another. Redox reactions.
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double-replacement reaction
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two compounds undergo change in partners.
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types of single replacement reactions
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redox reactions: combustion, corrosion/rusting
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redox reactions
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reduction-oxidation, combustion and rusting/corrosion. transfer of negative charge from one reactant to another.
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combustion
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reaction with oxygen, involving burning. CO2 and H2O are always products of a combustion reaction.
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types of double replacement reactions
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acid-base reaction (neutralization)
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acid-base reaction
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involve transfer of hydrogen ion (H+) from the acid to the base.
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law of conservation of mass
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matter can neither be gained nor lost in the process of a chemical equation.
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