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15 Cards in this Set
- Front
- Back
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product |
every chemical reaction forms one |
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bond energy |
energy needed to break reactants apart or combine them into new products |
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combustion reaction |
one reactant is always oxygen produces carbon dioxide and water |
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decomposition reaction |
reactant breaks down into simpler products, which could be elements or other compunds |
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synthesis reaction |
new compound is formed by the combination of simpler reactants |
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endothermic reaction |
energy is absorbed cold |
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exothermic reaction |
energy is released hot |
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photosynthesis |
plants endothermic process in which light is absorbed and used to change carbon dioxide and water into glucose and oxygen |
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subscript |
indicates the number of an element in a compound small numbers |
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law of conservation mass |
in chemical reaction, the mass of the reactant always equals the mass of the products |
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temperature |
affects the rate of a chemical reaction by changing the speed at which particles move |
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reactant |
a substance present at the beginning of a chemical reaction that is chemically changed by the reaction |
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precipitate |
a solid product that sometimes forms when chemicals in liquid react |
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chemical reaction |
changes the way in which atoms are arranged by causing bonds between atoms to break and new bonds to form between different atoms |
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catalyst |
a substance that increases the rate of a chemical reaction but is not consumed in the reaction |
