Its already balanced, no balancing required
Answer:
bytbyufvguv vvg uggy yvgu vgu gyu7yng8ugng88yn
Metal (Ca) Polyatomic anion (CO3). You do not need to use the roman numeral because Ca is in group 1. The answer is metal + polyatomic or Calcium Carbonate
Answer:
The iron core, copper wire, and an electricity source.
Explanation: Me