Question

These are reactions I did in my lab. I need to write the molecular, total ionic, and net ionic reactions for them. Even after watching Khan Academy and using my book, I was still unsure, so I asked the professor and he said every single one was wrong and told me to figure it out.

I know this is long, but I would really appreciate it. I need the molecular, total ionic, and net ionic equations for all of them. It's not making sense to me. Thank you.

a. HCl + CaCO₃ ­ → HCO₃ + CaCl₂

b. NaOH + HCl → NaCl + H₂O

c. NaOH + NH₄Cl → NaCl + NH₄OH

d. FeCl₃ + NaOH → NaCl + Fe(OH)₂

e. CoCl₂ + FeCl3 → NR

f. AgNO₃ + CoCl₂ → AgCl + Co(NO₃)₂

g. Na₂CO₃ + AgNO₃ → NaNO₃ + Ag₂CO₃

h. CuSO₄ + Na₂CO₃ → CuCO₃ + NaSO₄

i. CuSO₄ + BaCl₂ → CuCl + BaSO₄

j. NaSO₄ + CuSO₄ → NR

k. NiCl₂ + Na₃PO₄ → NiPO₄ + NaCl

Answer 1

a. HCl + CaCO3 ­ → HCO3 + CaCl2

Molecular reaction -

2HCl + CaCO3 ­ → H2CO3 + CaCl2

Total ionic reaction -

2H⁺ 2Cl^- + Ca²⁺ + CO3^2- ­ → 2H⁺ + CO3^2- + CaCl2

Net ionic reaction -

2Cl^- + Ca²⁺    →     CaCl2

b. NaOH + HCl → NaCl + H2O

molecular reaction -

NaOH + HCl → NaCl + H2O

total ionic reaction -

Na⁺ + OH^- + H⁺ + Cl^- → NaCl + H⁺ + OH^-

Net ionic equation -

Na⁺  + Cl^-   → NaCl

c. NaOH + NH4Cl → NaCl + NH4OH

Molecular equation -

NaOH + NH4Cl → NaCl + NH4OH

Total ionic equation

Na⁺   +   OH^-   + NH4⁺   +   Cl^-   → NaCl + NH4⁺   + OH^-

Net ionic equation -

Na⁺  + Cl^-   → NaCl

d. FeCl3 + NaOH → NaCl + Fe(OH)2

Molecular reaction -

FeCl3 + 3NaOH → 3NaCl + Fe(OH)3

Total ionic equation -

Fe³⁺  + 3Cl^- + 3Na⁺  + 3OH^-   → 3NaCl + Fe³⁺  + 3OH^-

Net ionic equation -

3Na⁺  + 3Cl^-   → 3NaCl

f. AgNO3 + CoCl2 → AgCl + Co(NO3)2

Molecular reaction -

2AgNO3 + CoCl2 → 2AgCl + Co(NO3)2

Total ionic equation -

2Ag⁺  + 2NO3^-   + Co²⁺  + 2Cl^-   → 2AgCl + Co²⁺   + 2NO3^-

Net ionic equation -

2Ag⁺  +    2Cl^-   → 2AgCl

g. Na2CO3 + AgNO3 → NaNO3 + Ag2CO3

Molecular reaction -

Na2CO3 + 2AgNO3 → 2NaNO3 + Ag2CO3

Total ionic equation -

2Na⁺  + CO3^2-   + 2Ag⁺   + 2NO3^-   → 2Na⁺ + 2NO3^-   + Ag2CO3

Net ionic equation -

2Ag⁺   + CO3^2-    →   Ag2CO3

h. CuSO4 + Na2CO3 → CuCO3 + NaSO4

Molecular reaction -

CuSO4 + Na2CO3 → CuCO3 + Na2SO4

total ionic equation -

Cu²⁺   +   SO4^2-   + 2Na⁺   +   CO3^2-   → CuCO3 + 2Na⁺  + SO4^2-

Net ionic equation -

Cu²⁺   + CO3^2-   → CuCO3

i. CuSO4 + BaCl2 → CuCl + BaSO4

Molecular reaction -

CuSO4 + BaCl2 → CuCl2 + BaSO4

Total ionic equation -

Cu²⁺  + SO4^2-   + Ba²⁺  + 2Cl^- → CuCl2 + Ba²⁺  + SO4^2-

Net ionic equation -

Cu²⁺  +   2Cl^-   → CuCl2

k. NiCl2 + Na3PO4 → NiPO4 + NaCl

Molecular reaction -

3NiCl2 + 2Na3PO4 → Ni3(PO4)2 + 6NaCl

Total ionic equation -

3Ni²⁺  + 6Cl^-   + 6Na⁺   + 2PO4^3-   → 3Ni²⁺  2(PO4)^3- + 6NaCl

Net ionic equation -

6Na⁺ + 6Cl^-     →    6NaCl