With every electron stationed in its own orbital or paired off with each other in the higher energy level, the energy level is balanced and stable. The atoms that utilize this exception are Molybdenum, Chromium, Gold, Silver, and Copper.
Answer:
Carbon dioxide and water I believe because it is a combustion reaction
Solution. because the substances can't go back to their original form. like kool aid, when its mixed you cant separate the powder and the water again.
The formula of the ppt. formed is PbSo4 , which is inslouble.
