6Al2O3
same as
6 * 3
= 18 oxygen atoms
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It depends on how many hydrogens are there and how many oxygen atoms there are.
There are 2 oxygen atoms in dioxide
There are 2 atoms and 3 molecules in oxygen.
Heptane has 22 oxygen atoms.
9
As indicated by the subscript on the atomic symbol for oxygen, there are 3 oxygen atoms.
8. There is 1 hydrogen atom, 3 phosphorus atoms (as indicated by the subscript 3), and 4 oxygen atoms (as indicated by the subscript 4).
The number of atoms is indicated by coefficients.
The chemical formula is MoPO4; the molecule contain four oxygen atoms.
In the compound 4Fe₃O₂, there are 2 oxygen atoms per formula unit of Fe₃O₂. Since there are 4 formula units (as indicated by the coefficient 4), you multiply 2 oxygen atoms by 4, resulting in a total of 8 oxygen atoms. Therefore, there are 8 oxygen atoms in 4Fe₃O₂.
There are two atoms of oxygen in an oxygen (O2) molecule.
There are 2 oxygen atoms in 1 molecule of oxygen.
It depends on how many hydrogens are there and how many oxygen atoms there are.
There are four oxygen atoms in one molecule of H3PO4.
There are 2 oxygen atoms in dioxide
In the balanced chemical equation 4 Cr(s) + 3 O2(g) → 2 Cr2O3(g), there are a total of 6 chromium atoms (2 from Cr and 4 from Cr2O3) and 6 oxygen atoms (6 from O2 and 3 from Cr2O3) on the right side of the equation.
Since each mole of carbon dioxide molecules contains two moles of oxygen atoms, as indicated by the formula CO2 for carbon dioxide, half a mole of carbon dioxide will have one mole of oxygen atoms.