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Ecology + Chemical Reactions - Coggle Diagram
Ecology + Chemical Reactions
Chemical Reactions
Atoms are constantly rearranging and forming new substances
The substances that react together are reactants
The new substances made are called the products
Example
Hydrogen and Oxygen
Chemical Reactions
All chemical reactions need energy in order for the reactants to change into the products
When the product (s) forms, this releases energy
Light
Sound
Heat
Factors affecting Rates of Reaction
What does rate of reaction mean?
The speed of a reaction is called the rate of the reaction
Reactions, particles and collisions
Reactions take place when particles collide with a certain amount of energy
The minimum amount of energy needed for the particles to react is called activation energy and is different for each reaction
The rate of a reaction depends on two things
The frequency of collisions between particles
The energy with which particles collide
If particles collide with less energy than the activation energy, they will not react. The particles will just bounce off each other.
Changing the rate of reactions
Anything that increases the number of successful collisions between reactant particles will speed up a reaction
What factors affect rate of reactions
Termperature
Concentration
Surface area
Catalyst
Nature of the reactants