2 moles of ZnO are produced if 1 mole of Zn and 2 moles of [tex]O_2[/tex] is required.
What are moles?
A mole is defined as 6.02214076 × [tex]10^{23}[/tex] of some chemical unit, be it atoms, molecules, ions, or others. The mole is a convenient unit to use because of the great number of atoms, molecules, or others in any substance.
Balanced equation:
[tex]2 Zn + O_2[/tex] → [tex]2 ZnO[/tex]
For 2 moles of Zinc, we need 1 mol of Oxygen to produce 2 moles of Zinc oxide
For 1 mole Zn, we need 2 mol [tex]O_2[/tex] to produce 2 moles ZnO only.
Hence, 2 moles ZnO is produced.
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