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Science Revision - Coggle Diagram
Science Revision
Chemical Reactions:
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The law of conservation of mass states that when a chemical reaction occurs,the total mass of the reactants is always equal to the total mass
of the products.
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The rate of reaction is defined as the change in concentration per unit time of any one reactant or product.
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The Atom:
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there is tiny particles inside the atom and they are called subatomic particles.The word subatomic means inside the atom.There are 3 types of subatomic particle.Proton,electron and neutron.
a Danish scientist called Niels Bohr proposed that the electrons moved around the nucleus in fixed paths called orbits.
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