Diatomic elements & Writing Formula Equations from Word Equations
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10 Terms
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Chemical Reaction
represents a chemical reaction
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Reactants and products are ________
separated from each other with a plus (+) sign
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(s)
solid
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(l)
liquid
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(g)
gas
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(aq)
aqueous
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heat or a triangle (on top of) →
heat is added
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Pt (on top of) →
catalyst is added
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Catalyst
a substance that speeds up a reaction (not consumed or changed)
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Diatomic elements
Pure elements that form molecules consisting of two atoms bonded together
Br2, I2, N2, Cl2, H2, O2, F2
Note 
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