It's basically a difference in the electron shell arrangement of the central Iron atom. In Iron II Nitrate, Iron has a +2 charge (Fe2+) and in Iron III Nitrate, Iron has a +3 charge (Fe3+). So there are two nitrates attached to Iron II: Fe(NO3)2 and three nitrates attached to Iron III: Fe(NO3)3.
They would both behave nearly identical in solutions since nitrates dissociate 100% but the Fe2+ and Fe3+ ions are useful in voltaic cells.
Iron II nitrate contains an iron ion with a 2+ charge and has the formula Fe(NO3)2. Iron III nitrate contains an iron ion with a 3+ charge and has the formula Fe(NO3)3
anhydrous iron(III) nitrate (ferric nitrate) is Fe(NO3)3 there is a hydrate Fe(NO3)9H2O Iron(II) nitrate (ferrous nitrate) is Fe(NO3)2.
The chemical formula of iron(II) nitrate is Fe(NO3)2.
The formula for the compound Iron (II) Nitratrate (or Ferrous Nitrate) is Fe(NO3)2
3Mg + 2Fe(NO3)3 ----> 3Mg(NO3)2 + 2Fe
Iron II nitrate contains an iron ion with a 2+ charge and has the formula Fe(NO3)2. Iron III nitrate contains an iron ion with a 3+ charge and has the formula Fe(NO3)3
anhydrous iron(III) nitrate (ferric nitrate) is Fe(NO3)3 there is a hydrate Fe(NO3)9H2O Iron(II) nitrate (ferrous nitrate) is Fe(NO3)2.
Barium nitrate + Iron = [No reaction] Ba(NO3)2 + Fe = [No reaction]
The chemical formula of iron(II) nitrate is Fe(NO3)2.
The formula for the compound Iron (II) Nitratrate (or Ferrous Nitrate) is Fe(NO3)2
3Mg + 2Fe(NO3)3 ----> 3Mg(NO3)2 + 2Fe
The products are iron (II) nitrate and copper.
the numbers 2 & 3
Lead nitrate or Pb(NO3)2 , contains divalent lead ions. While Silver nitrate or AgNO3 , contains monovalent silver ions
Iron nitrate and copper. Fe + Cu(NO3)2 -> Fe(NO3)2 + Cu
The chemical equation is:Fe + 2 AgNO3 = Fe(NO3)2 + 2 Ag
FeNo2 is iron nitrite.Answer 2. Ferrous Nitrite or iron Nitrite (II)would be Fe(NO2)2.Ferric Nitrite or Iron Nitrite (III) would be Fe(NO2)3.