What substances will the iron interact with: calcium, sulfur, hydrochloric acid solution, copper chloride solution

What substances will the iron interact with: calcium, sulfur, hydrochloric acid solution, copper chloride solution (2), sodium sulfate solution, calcium carbonate. Write the equations of reactions in molecular form. Name the reaction products.

1) Fe + H2SO4 = FeSO4 + H2 – iron displaces hydrogen from sulfate acid, forming ferrous sulfate and hydrogen.
2) Ca + 2HNO3 = Ca (NO3) 2 + H2 – calcium interacts with nitrate acid, forming calcium nitrate and hydrogen.
3) S + O2 = SO2 – sulfur burns, forming sulfur oxide.
4) HCl + NaOH = NaCl + H2O – hydrochloric acid reacts with sodium hydroxide to form sodium chloride and water.
5) CuCl2 + 2KOH = Cu (OH) 2 + 2KCl – copper chloride reacts with potassium hydroxide, forming copper hydroxide and potassium chloride.
6) Na2SO4 + BaCl2 = BaSO4 + 2NaCl – sodium sulfate reacts with barium chloride, forming barium sulfate and sodium chloride.
7) CaCO3 + H2SO4 = CaSO4 + H2CO3 -> CO2 + H2O – calcium carbonate reacts with sulfate acid, forming calcium sulfate and carbonic acid, which is unstable and decomposes into water and carbon dioxide.



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