chemical world Flashcards

1
Q

describe.chemical reaction

A

chemical reactions occur when bonds between atoms are broken or formed

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2
Q

endothermic reaction

A

any chemical reaction absorbed heat

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3
Q

exothermic reaction

A

chemical reactions that release enrgy

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4
Q

factors that affect the rate of reaction

A

catalyist, presssure, temprature, concentration,

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