C2 Exothermic and Endothermic Flashcards

1
Q

What is an exothermic reaction?

A

Reaction that gives out heat energy

( products have less stored energy than reactants )

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2
Q

What happens to the temperature in an exothermic reaction?

A

Temperature increases

(feels warm)

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3
Q

Give an example of an exothermic reaction?

A

Combustion ( burning)

Acids with alkalis

Magnesium with acid

Respiration

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4
Q

What is an endothermic reaction?

A

Reactions that takes in heat energy (from the surroundings)

( products have more stored energy than reactants )

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5
Q

What happens to the temperature in an endothermic reaction?

A

Temperature decreases (feels cold)

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6
Q

Give an example of an endothermic reaction?

A

Potassium chloride with water

Citric acid and sodium hydrogen carbonate ( sherbet )

photo synthesis

cooking

electrolysis

polymerization

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7
Q

What is a reversible reaction?

A

Reaction can go in both directions

Both the forward and reverse reactions can take place

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8
Q

What is the reversible reaction symbol?

A
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