how can i find the mass of reactants please help

if i only have a mass of one product how can i work out the mass of the reactants and other products

zinc + copper oxide = zinc oxide + copper

1 kilo of zinc oxide

how would i work out the mass of copper oxide,zinc and copper

Comment viewing options

Select your preferred way to display the comments and click "Save settings" to activate your changes.

write down a proper equation.

You will then know how many moles of zinc reacts with how many moles of the oxide to give how many moles of zinc oxide.

work out how many moles of zinc oxide is in 1 kg of the stuff, and work backwards. so if one mole of zinc reacts to give one mole of zinc oxide, find the number of mole of zinc oxide and times that number by the RMM of zinc, thats how much zinc. Do the same for the rest.