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energy changes Flashcards

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1
Q

what is an endothermic reaction?

A

an endothermic reaction absorbs heat from its surroundings
temperature decreases

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2
Q

what is an endothermic reaction?

A

an endothermic reaction absorbs heat from its surroundings
temperature decreases

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3
Q

in an endothermic reaction, what happens to the surrounding heat and its temperature?

A

the surrounding loses heat and its temperature decreases.

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4
Q

what are some examples of an endothermic reaction?

A

photosynthesis, action of light on silver bromide in photographic films, thermal decomposition, melting, evaporation/boiling, bond breaking

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5
Q

what is an exothermic reaction?

A

an exothermic reaction releases heat to the surroundings.
temperature increases

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6
Q

in an exothermic reaction, what happens to the surroundings and its temperature?

A

the surroundings gains heat and the temperature increases.

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7
Q

what are some examples of an exothermic reaction?

A

combustion, separation, rusting, neutralisation, freezing, condensation and formation of bonds

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chem (22 decks)

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