1
matter is not created or destroyed during a chemical reaction
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When reactants change into products
3
a short, easy way to show a chemical reaction using symbols
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reaction that absorbs energy
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a reaction that releases energy in the form of heat
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a substance formed as a result of a chemical reaction
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negatively charged particles
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material the increases the rate of a reaction
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two or more atoms chemically combined
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a substance that enters into a chemical reaction
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found by subtracting the mass from the atomic number
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part of the atom where you find protons and neutrons
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positively charged subatomic particles
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where electrons are found orbiting the nucleus
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tastes bitter, feels slippery 7.1-14 on pH scale
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tastes sour, reacts with metal 1-6.9 on scale
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basic particle that makes up matter
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value of hydrogen ions in a solution
