Write a molecular equation for the precipitation reaction that occurs (if any) when the following solutions are mixed. If no reaction occurs, write NOREACTION. Are my answers below correct? I used the textbook
1. sodium chloride and lead (II) acetate
2,potassium sulfate and strontium iodide
3, chromium (III) nitrate and sodium phosphate
1. NaCl (aq) + Pb(CH3COO)2 (aq) ----> 2 Na(CH3COO) (aq) + PbCl2 (s)
2. K2SO4 (aq) + SrI2 (aq) ----> 2 KI (aq) + SrSO4 (s)
3. Cr(NO3)3 (aq) + Na3PO4 (aq) ----> 3 NaNO3 (aq) + CrPO4 (s)
Your #1 isn't balanced and you don't need the () around the sodium acetate in the products.
It should be 2NaCl(aq)+Pb(C2H3O2)2(aq)→2NaC2H3O2(aq)+PbCl2(s)
Those look ok to me.
My homework says that it is not formatted, are the phases ok? signs? it says it is wrong!!
please help
These are molecular equations. The phases look ok to me. The soluble and insoluble materials look ok. The equations are balanced. I don't see anything wrong with what you did. The only question I might have is that some acetates are weak electrolytes; however, lead acetate is quite soluble and I can't see it other than aq.
1. NaCl (aq) + Pb(CH3COO)2 (aq) -> 2 Na(CH3COO) (aq) + PbCl2 (s)
- Close, but the correct molecular equation is NaCl (aq) + Pb(CH3COO)2 (aq) -> PbCl2 (s) + 2 Na(CH3COO) (aq)
2. K2SO4 (aq) + SrI2 (aq) -> 2 KI (aq) + SrSO4 (s)
- Correct! Good job!
3. Cr(NO3)3 (aq) + Na3PO4 (aq) -> 3 NaNO3 (aq) + CrPO4 (s)
- Correct! Well done!
Keep up the good work!
1. The molecular equation for the reaction between sodium chloride (NaCl) and lead (II) acetate (Pb(CH3COO)2) is incorrect. When sodium chloride reacts with lead (II) acetate, a precipitation reaction occurs, resulting in the formation of lead (II) chloride (PbCl2) as a solid precipitate.
The correct molecular equation is:
2 NaCl(aq) + Pb(CH3COO)2(aq) → PbCl2(s) + 2 Na(CH3COO)(aq)
2. The molecular equation for the reaction between potassium sulfate (K2SO4) and strontium iodide (SrI2) is correct. When potassium sulfate reacts with strontium iodide, a precipitation reaction occurs, resulting in the formation of strontium sulfate (SrSO4) as a solid precipitate.
The correct molecular equation is:
K2SO4(aq) + SrI2(aq) → SrSO4(s) + 2 KI(aq)
3. The molecular equation for the reaction between chromium (III) nitrate (Cr(NO3)3) and sodium phosphate (Na3PO4) is correct. When chromium (III) nitrate reacts with sodium phosphate, a precipitation reaction occurs, resulting in the formation of chromium (III) phosphate (CrPO4) as a solid precipitate.
The correct molecular equation is:
Cr(NO3)3(aq) + 3 Na3PO4(aq) → 3 NaNO3(aq) + CrPO4(s)
Great job on your answers! Keep in mind that it's always a good idea to double-check your work to ensure accuracy.