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PiXL GetIT!
GCSE Chemistry
Topic – Energy changes   
© Copyright The PiXL Club Ltd, 2017
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2. GetIT – Energy changes
Chemical reactions can release energy to the surroundings or take in energy from the surroundings. Exo = outside Endo = inside Thermic = heat Exothermic reactions release heat energy to the surroundings = the temperature increases Endothermic reactions take in heat energy from the surroundings = the temperature decreases

3. Match IT Exothermic Endothermic Activation energy Hydrocarbon
The minimum energy needed for a reaction to take place
Endothermic
Liquid mixture of hydrocarbons
Activation energy
Chemical that is used up during a chemical reaction
Hydrocarbon
A reaction that takes in energy from the surroundings. Temperature decreases
Crude oil
The energy required to break a chemical bond
Fuel cell
Chemical that is produced during a chemical reaction
Reactant
A cell that converts chemical energy into electricity
Product
A reaction that transfers energy to the surroundings. Temperature increases
Bond energy
Compound containing only hydrogen and carbon

4. Match IT - Answers Exothermic Endothermic Activation energy
A reaction that transfers energy to the surroundings. Temperature increases
Endothermic
A reaction that takes in energy from the surroundings. Temperature decreases
Activation energy
The minimum energy needed for a reaction to take place
Hydrocarbon
Compound containing only hydrogen and carbon
Crude oil
Liquid mixture of hydrocarbons
Fuel cell
A cell that converts chemical energy into electricity
Reactant
Chemical that is used up during a chemical reaction
Product
Chemical that is produced during a chemical reaction
Bond energy
The energy required to break a chemical bond

5. Label IT

6. Label IT - Answers
Exothermic
Activation energy
Products
Reactants

7. Label IT

8. Label IT - Answers
Endothermic
Products
Activation energy
Reactants