Eg ba3po42 3 barium atoms 2 phosphorus

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Unformatted text preview: e.g. N2 = 2 nitrogen atoms 3. A subscript outside a bracket multiplies all the elements inside the brackets. e.g. Ba3(PO4)2 = 3 barium atoms = 2 phosphorus atoms (2x1) = 8 oxygen atoms (4x2) 4. a) A coefficient is a number written in front of a chemical symbol and indicates the number of atoms of that element. e.g. 3 C = 3 carbon atoms b) A coefficient is a number written in front of a...
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