SC-51
Chemical formulae
Lower Sec Science · Secondary 1 · Hard · Chemical formulae
Oxygen gas has the chemical formula and nitrogen monoxide gas has the chemical formula . Which statement correctly compares one molecule of nitrogen monoxide with one molecule of oxygen?
- Both molecules have 2 atoms, but nitrogen monoxide has 2 different elements.
- Nitrogen monoxide has 3 atoms while oxygen has 2 atoms.
- Oxygen has 2 different elements while nitrogen monoxide has only 1 element.
- Both molecules have the same number of elements and the same number of atoms.
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