Yes. Two atoms sharing electroncs in a covalent bond is a chemical reaction.
Chemical bonds are formed by sharing of atoms.
mutual sharing of electrons take place.
Chemical bonds are formed by the sharing or donating of electrons. The electrons that atoms use to make chemical bonds are the outermost electrons, also known as valence electrons.
A covalent bond occurs when atoms are sharing electrons equally.
transferring or sharing electrons
Gain, or loss, or sharing of electrons with other atoms.
chemical bond
Electrons!
No, different atoms make chemical bonds in different ways. They may form chemical bonds by either loosing or accepting electrons, sharing or by mutual sharing electrons.
It is not clear from your question what you mean by sharing substances, or exactly what it is that these substances are sharing. However, I'll make a guess. Chemical reactions often involve atoms sharing electrons. And what happens to them during chemical reactions is that the distribution of electrons shifts. Electrons don't have to actually leave one atom and go to another in order to form a chemical reaction. Sometimes it is more a matter of spending some time with one atom and some time with another, or with several others. Electrons are very versatile.
Two atoms sharing three pairs of electrons have a triple bond.
transferring or sharing electrons