Discover that altering the number of successful collisions between particles is key to changing the rate of chemical reactions. How this can be manipulated?
- New substances are made when particles collide in chemical reactions.
- The rate of a reaction depends on temperature, pressure, concentration and catalysts.
- Catalysts speed up reactions by lowering the activation energy.
- The activation energy is the minimum amount of energy needed to cause a reaction.
Chemical reactions always involve new substances being made when particles collide.
Millions and millions of collisions can occur between particles every second.
But a reaction will only occur if the particles collide with enough energy.
The minimum amount of energy needed to cause a reaction is called the activation energy.
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