This ratio is different for each compound; for the oxide P4O10 the ratio is 2/5.
the numbers
2:1 ratio. There would be eight atoms of hydrogen and four atoms of oxygen.
The ratio Na/Cl is 1 in the formula unit.
All sugars are carbohydrates, with the general ratio Cx(H2O)y. There are thus 2 moles of H atoms to 1 mole of C atoms.
Epsom Salt
This ratio is 2/5.
This ratio is different for each compound; for the oxide P4O10 the ratio is 2/5.
The chemical formula of potassium nitride is K3N. The ratio potassium atoms/nitrogen atoms is 3.
The ratio of atoms in monosaccharides is 1 carbon: 2 hydrogen: 1 oxygen.
A chemical formula gives the number ratio of the different kinds of atoms present in the compound. This means that the ratios are the same if you count in individual atoms, dozens of atoms, or molecules of atoms.
The ratio (as atoms) carbon/oxigen in graphitic oxides is between 2,1 and 2,9.
2:4
1:1
C to O in the ratio 1 : 2.
3 : 2
3 of the compound