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Calc.the mass of lead (pb) which would be obtained by heating 35.25g of Pb3O4 in...

Calc.the mass of lead (pb) which would be obtained by heating 35.25g of Pb3O4 in steam of hydrogen and mass of water formed at the same time
Determine whether or not law of conservation of mass is observed [pb=207,H=1,O=16]?

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