Question

CuSO4+Fe=         FeSO4+Cu=            Na2Co3+HNO3=  FeSO4+NaOH=              BaCl2+Na2SO4= FeCl3+Na2SO4=                    CaO+H2O= Ca(OH)2+HNO3= 

Answer 1

Fe + CuSO4 = FeSO4 + Cu

Cu + FeSO4 = CuSO4 + Fe

Na2CO3 + HNO3 = H2O + CO2 + NaNO3

FeSO4 + 2 NaOH = Fe(OH)2 + Na2SO4

BaCl2 + Na2SO4 = BaSO4 + 2 NaCl

2 FeCL3 + 3 Na2SO4 = Fe2(SO4)3 + 6 NaCL

CaO + 2 H2O = Ca(OH)2

Ca(OH)2 + 2 HNO3 = Ca(NO3)2 + 2H2O

Answer 2

The given chemical equations and reactions can be balanced as follows:

1. CuSO4 + Fe → FeSO4 + Cu Copper sulfate (CuSO4) reacts with iron (Fe) to form iron sulfate (FeSO4) and copper (Cu).

2. Na2CO3 + HNO3 → NaHCO3 + NaNO3 Sodium carbonate (Na2CO3) reacts with nitric acid (HNO3) to form sodium bicarbonate (NaHCO3) and sodium nitrate (NaNO3).

3. FeSO4 + NaOH → Fe(OH)2 + Na2SO4 Iron sulfate (FeSO4) reacts with sodium hydroxide (NaOH) to form iron hydroxide (Fe(OH)2) and sodium sulfate (Na2SO4).

4. BaCl2 + Na2SO4 → BaSO4 + 2NaCl Barium chloride (BaCl2) reacts with sodium sulfate (Na2SO4) to form barium sulfate (BaSO4) and sodium chloride (NaCl).

5. FeCl3 + Na2SO4 → Fe2(SO4)3 + 2NaCl Iron(III) chloride (FeCl3) reacts with sodium sulfate (Na2SO4) to form iron(III) sulfate (Fe2(SO4)3) and sodium chloride (NaCl).

6. CaO + H2O → Ca(OH)2 Calcium oxide (CaO) reacts with water (H2O) to form calcium hydroxide (Ca(OH)2).

7. Ca(OH)2 + HNO3 → Ca(NO3)2 + 2H2O Calcium hydroxide (Ca(OH)2) reacts with nitric acid (HNO3) to form calcium nitrate (Ca(NO3)2) and water (H2O).