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Question
What do the following abbreviations stand for ?
- O
- 2O
- O2
- 3O2
Solution
- O stands for an atom of oxygen.
- 2O refers to two atoms of oxygen which are not chemically bonded.
- O2 refers to a molecule of oxygen in which atoms are chemically bonded to give a molecule of oxygen gas.
- 3O2 refers to three molecules of oxygen.
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