Why we write the formula H2O2 though we can cancle 2

Asked by  | 23rd Jul, 2008, 08:40: AM

Expert Answer:

We do not write formulas by cancelling out the common terms. In hydrogen peroxide, 2 atoms of hydrogen combine with 2 atoms of oxygen. If we cancel the 2, then it will give a false picture of one atom of hydrogen combining with one atom of oxygen, which is incorrect.

Answered by  | 23rd Jul, 2008, 11:33: AM

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