Q: 1.Draw the electronic formulae for the following covalent molecule :- H2
:- O2
:- N2
:- C2H2
:- CO2

Which element is the least metallic between cadmium, silver, zinc, or iron?

The identities of substances are the same before and after which type of change

These traits describe either a chemical or a nuclear reaction. which statements describe a nuclear reaction? check all that apply. involves the loss, gain, or sharing of electrons may involve a change in total mass involve relatively low energy changes occur outside the nucleus involve very high-energy changes involve changes in nuclides when decay occurs