70.a. magnesiob sulfide. nitrógenoc gas. bariod hydroxide. Copper (II) nitruroe. ion sulfurof. calciog carbonate. Sodioh bromide. ferric sulphate
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MGSN2Ba (OH) 2Cu3N2S2CaCO3NaBrFe2 (SO4) 3
Ferric iron is +3. The sulfate is SO 4 2 -. FeSO4 Ferrous sulphate (iron 2) is not the right answer for you.
a. MGSb. N2c. Ba (OH) 2D. Cu3N2e. S2F. CaCO3g. NaBrh. Fe3 (SO4) 2
a. MGSb. N2c. Ba (OH) 2D. Cu3N2e. S-2F. CaCO3g. NaBrh. Fe2 (SO4) 3