English National Curriculum - Science
Mission Objectives
Describe how changing concentration affects the rate of reaction
Explain how increasing concentration increases the rate of reaction
Investigate the effect of increasing concentration on reaction rate
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Words and meanings to learn
collisions
when particles bump into each other; for a reaction to happen, the collisions must have enough energy, called successful collisions
activation energy
the minimum amount of energy that particles need to successfully react when they collide
concentration
the amount of a substance (reactant) in a certain volume of solution
rate of reaction
how quickly a reaction takes place; it can be measured by how fast reactants are used up or how quickly products are formed
variable
something that can change in an experiment; it could be something you change on purpose (independent variable), something you measure (dependent variable), or something you keep the same (control variable)
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RP 1:
RP2: Disappearing X with sodium thiosulfate
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