Chemistry Test
Help!
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| 3 different types of chemical reactions? | decomposition, replacement, and synthesis
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| synthesis? | A + B ---> AB
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| difference between physical and chemical change? | physical is reversible, always the same compound, chemical's atoms and element have changed
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| decomposition? |
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| 5 proofs of a chemical change? | gas, temperature , color property, property change, precipitation
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| what can affect the speed of a chemical change? | catalysts
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| exothermic reaction? | reaction which releases heat ( gets hotter)
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| endothermic reaction? | reaction which absorbs heat (gets colder(
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| activation energy? | amount of energy needed to get a reaction started
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| catalyst? | speeds up a reaction
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| inhibitor? | slows down a reaction
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| law of conservation of mass? | states that the mass of substances in a closed system will remain constant, no matter what processes are acting inside the system.
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| according to conservation of mass law , unbalanced? | doesn't observe law of conservation of mass
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| according to conservation of mass law, balanced? | observes the law of conservation of mass
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