NCERT Class 10 Science Chapter 1 Intext Question Answer: Chemical Reactions and Equations are an important part of the Class 10 Science curriculum that helps students understand the various types of ...
For example, magnesium oxide is made up of two elements, magnesium and oxygen. Its formula is MgO. This shows that it has one atom of magnesium for every one atom of oxygen.
For example, the formula H 2 O shows that a water molecule contains two hydrogen atoms and one oxygen atom.
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