Answer:
A spectator ion is an ion that does not participate in a chemical reaction and is found in a solution before and after a reaction.
Hope this helped :)
Molarity = mol/L
0.175 mol
0.15 L (1000 mL = 1 L)
Molarity = 0.175 mol/0.15 L = 1.1666667 M
He put iron with sulfur and oxygen and it had a few more errors and iron is a metal the other two are nonmetals
1 Aluminium is oxidised Al - 3e = Al⁺³
2 Chlorine is reduced Cl⁺⁷ + 8e = Cl⁻¹
3 Nitrogen is oxidised 2N⁻³ - 6e = N₂
