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31 Cards in this Set
- Front
- Back
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law of conservation of mass
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the starting mass of a reactant equals the mass of the product
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->
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produces or forms
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+
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plus
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(s)
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solid
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(l)
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liquid
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(g)
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gas
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(aq)
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aqueous; a substance dissolved in water
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heat ->
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the reactants are heated
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light ->
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the reactants are exposed to light
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elec. ->
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an electric current is applied to the reactants
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synthesis reaction
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A+B=AB
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decomposition reactions
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AB->A+B
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single-displacement reactions
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A+BC->AC+B
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double displacement
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AB+CD->AD+CB
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Antonie Lavosier
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established the law of conservation of math
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atoms detail
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atoms can be rearragned but they never loose their form
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iron and air
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when iron is exposed to air it corrodes and forms rust
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alumminum and oxygen
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when they interact alumminum oxide
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copper detail
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when it is exposed to air it corrodes and turns blue/green. this coating is called patina.
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synthesis reaction example
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hydrogen burns into oxygen to form water
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decomposition detail
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most requires heat, light, or electricity
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displacement example
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copper is placed in solution of silver nitrate. copper replaces silver nad the silver in turn forms on wire
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double displacement example
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barium nitrate's reaction wiht postassium sulfate.
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dynamite expostion
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rapid chemical reaction
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energy in reactions
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all chemical reactions release or absorb energy.
can be in heat, sound, light, or electricity the source of the energy is chemical bonds |
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exergonic reactions example
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glo stick
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exothermic reaction example
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burning wooden
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endergoic reaction example
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used to coat metal onto a surface like copper on a coin
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endothermic reaction example
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Epsom salt in water; salt absorbs heat making the water colder
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cataylast details
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when added to reactions the product forms more rapidly
used to speed the productions of plastics and fibers |
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inhibitors
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tie up reactants to keep from original reaction
brushing or spraying something with lemon juice stops catalysts from reaction |
