Mass in a chemical reaction: using moles (RAM 1 d.p.)
Lesson 8 / 30
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I can interpret a balanced symbol equation to predict the mass of either a reactant or a product.
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Stoichiometry means ‘measuring elements’, from the Greek 'stoikhein' – meaning element and 'metron' – to measure.
Chemical equations should be interpreted in terms of moles (i.e. 1 mole of this reacts with 2 moles of that).
The mass of each reactant that does react can be worked out from the relative formula masses in the chemical equation.
In a chemical reaction, the atoms in reactants are rearranged and are the same atoms that are in the products.
The mass of products in a chemical reaction is equal to the mass of the reactants.
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