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Card 16
Front
It is the weighted mean mass of a molecule of a compound compared with 1/12 the mass of a carbon-12 atom which is taken as 12 exactly.
Back
Card 17
Front
It is the weighed mean mass of a formula unit of a compound compared with 1/12 the mass of an atom of carbon-12 which is taken as 12 exactly.
Back
Card 18
Front
It is the simultaneous oxidation and reduction of the same species in a chemical reaction.
Back
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