NSK
@21stCScienceC6
Bitesize chunks of revision material for OCR 21st Century Science Course C6 - Chemical synthesis.
Lets start with relative formula mass leading to relative reacting masses. 100g of CaCO3 will make 111g of CaCl2. How much will 25g make?
a salt + carbon dioxide + water e.g. 2HCl + CaCO3 = CaCl2 + CO2 + H2O
Acids react with metal oxide to produce a salt and water eg 2HCl + MgO = MgCl2 + H2O
Acids react with metals to produce a salt and hydrogen eg 2HCl + Mg = MgCl2 + H2
GCSE C6 revision - How to increase rate of reaction = inc temperature, concentration, surface area or add catalyst
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