CH-1870
The mole
Chemistry · Secondary 4 · Hard · The mole
The formula of an oxide of element Z is . 12.0 g of contains 7.2 g of Z.
How many moles of Z atoms are present in 7.2 g of the element?
How many moles of Z atoms are present in 7.2 g of the element?
- 0.20 mol
- 0.10 mol
- 0.30 mol
- 0.40 mol
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