Chemistry- Reacting masses and chemical equations 0.0 / 5 ? ChemistryAtoms and compoundsIGCSECIE Created by: KitsuneCreated on: 30-06-16 08:52 What is valency? The umber of electrons an atom of an element loses, gains or shares 1 of 8 How are reactants sometimes called? Reagents 2 of 8 What are the state symbols? s for solid, l for liquid, g for gas, aq for solution in water 3 of 8 What is the relative atomic mass? The average mass of its naturally occurring isotopes relative to the mass of carbon-12 4 of 8 What mass is an ion of the element? Same as the atom because the electrons are super light 5 of 8 How to find molecular mass? It is the sum of the relative atomic masses 6 of 8 What happens to the total mass during a reaction? It stays the same 7 of 8 How to calculate purity? Mass of pore substance divided by total mass 8 of 8
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