English National Curriculum - Science
Mission Objectives
Define collision theory and activation energy
Describe how collisions cause reactions
Explain how activation energy affects the rate of reaction
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Words and meanings to learn
rate
the speed at which a reaction occurs
frequency
how often particles collide in a given time
collision theory
a theory stating that chemical reactions only occur when particles collide with enough energy and the correct orientation
activation energy
the minimum amount of energy required for a chemical reaction to occur
successful collision
when two or more particles crash into each other with enough energy to react
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