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15 Cards in this Set

  • Front
  • Back
  • 3rd side (hint)

Energy can not be ____ or ___

Created or destroyed

In an exothermic reaction, heat is _______

Given out

In an endothermic reaction, heat is ________

Taken in

Where does an exothermic reaction transfer some of its energy to

The surroundings

3 example exothermic type of reactions:

1. Combustion

2. Neutralisation reactions

3. Oxidation reaction

Where exothermic reactions can be used:

1. Hand warmers

2. Self heating cans

What happens to the temperature near an endothermic reaction?

It goes down

Examples of endothermic reactions:

1. Thermal decomposition

2. Citric acid + sodium hydrogen carbonate

Use of endothermic reactions:

Sports injury packs

What's the name of the graph that shows energy changes?

A reaction profile

In an exothermic reaction the products energy are ___ than the reactants


What is activation energy?

The minimum amount of energy reactants need to react

Bond breaking is _____thermic

Bond forming is _____thermic



Energy must be supplied to do what?

Energy is released when what happens?

What is the bond energy of a compound?

How much energy is needed to break the bonds of the compound (or make it )