Chemistry
State the difference between the following:
(a) 2H and H2
(b) H2O and 3Н2О ?
Elements, Compounds & Mixtures
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Answer
(a) 2H represents two atoms of hydrogen while H2 represents one molecule of hydrogen.
(b) H2O indicates that water molecule is formed by the combination of two elements i.e., Hydrogen and Oxygen. The number of hydrogen atom is two and that of oxygen atom is one.
If we write 3Н2О it represents three molecules of water. It contains six atoms of hydrogen and three atoms of oxygen.
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