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Flashcards in energy changes Deck (9)
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1
Q

exothermic

A
  • temperature rise

- give out heat energy

2
Q

exothermic products

A

self heating cans

hand warmers

3
Q

endothermic

A
  • falls in temperature

- take in heat energy

4
Q

endothermic uses

A

sport injury packs

5
Q

measuring exothermic

A
  • combustion
  • oxidation reactions
  • neutralisation
6
Q

measuring endothermic

A

-thermal decomposition of metal carbonates

7
Q

in a chemical reaction, new substances are produced:

A
  • the bonds in the reactants are broken

- new bonds are made to form the products

8
Q

breaking a chemical bond

A

requires energy (endothermic)

9
Q

new chemical bond is formed

A

energy is given out

exothermic