Ba(OH)2 has 2 oxygen atoms. It is the chemical formula for barium hydroxide.
Two oxygen atoms exist.
It depends upon the compound. For example, H2O has three atoms, two atoms of hydrogen and one atom of oxygen.
Barium nitrate has 6 oxygen atoms.
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The formula means, among other things, that there are 7 atoms of oxygen in each mole of the compound. Therefore, in 4.00 moles of the compound, there are 28.00 moles of oxygen atoms. Elemental oxygen usually is diatomic, so that there would be the equivalent of 14 moles of diatomic elemental oxygen.
This compound is not known.
Water is compound that has 2 hydrogen atoms and 1 oxygen atom: H2O.
A compound containing potassium and oxygen atoms would have a formula of K2O, and would be named potassium oxide. This is a binary ionic compound.
The oxide Fe2O3 has 3 oxygen atoms in the molecule.
Ba(OH)2 There are two oxygen atoms in the compound unit of barium hydroxide.
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There are two elements, nitrogen and oxygen. There are seven total atoms, two nitrogen atoms and five oxygen atoms.
A compound containing potassium and oxygen atoms would have a formula of K2O, and would be named potassium oxide. This is a binary ionic compound.
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2
The chemical formula is MoPO4; the molecule contain four oxygen atoms.
It depends upon the compound. For example, H2O has three atoms, two atoms of hydrogen and one atom of oxygen.