What group is nitrogen (N) in?"
Group 2
Group 12
O Group 15
O Group 18

The chemical equation below shows the reaction of sodium (na) and chlorine (cl) to form sodium chloride (nacl). 2na + cl2 → 2nacl in this equation, which of the following is a reactant? i. sodium ii. chlorine iii. sodium chloride

What is the most common reason for matter changing its state?

Use the half-reactions of the reaction au(oh)3 + hi -> au +i2 +h2o to answer the questions