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Question

Give three kinds of information conveyed by the formula H2O.

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Solution

Information conveyed :
1. H2O is the chemical formula of water.

2. There are 2 atoms of hydrogen and one atom of oxygen.
3. The definite proportion: 2 grams of hydrogen and 16 grams of oxygen. It means the hydrogen and oxygen combine together in the ratio 1:8.
4. The law of mass conservation: The mass of the products in a chemical reaction must equal the mass of the reactants.

2 H24 g + O232 g4 + 32 = 36g 2 H2O2×18 = 36g


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