Question

In chemical equation why we write elements like H2 ,02 ,SO4 ,Cl2???

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Answer 1

Answer:

Chlorine is called Cl2 because it is a diatomic molecule. Diatomic means there are two atoms of the same elements in the molecule. There are other diatomic molecule, such as hydrogen (H2), nitrogen (N2), oxygen (O2), fluorine (F2), chlorine (Cl2), bromine (Br2), iodine (I2).

Answer 2

Answer:

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