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Heat energy changes in chemical reactions MatchUp
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Click on a top box, then click on its match below. Or, drag a top box and drop it onto the correct match. Match all pairs before clicking ‘Check’.
Sports injury packs
Bond energies
Reaction profile
Exothermic
Thermal decomposition
Reaction profile
Endothermic
Products
Overall energy change
Activation energy
Hand warmers
Reactants
Combustion
A reaction that increases the energy of the surroundings
A reaction that decreases the energy of the surroundings
Reaction type that is exothermic
Reaction type that is endothermic
The minimum amount of energy needed for particles to react
A diagram used to show the relative energy levels of reactants and products
Energy is released when bonds are formed in these substances
Energy is needed to break the bonds in these substances
Used to calculate the energy needed to form and break bonds
The difference between the energies of the reactants and products
Objects which make use of an exothermic reaction
Objects which make use of an endothermic reaction
A diagram used to show the relative energy levels of reactants and products