# chemistry

posted by .

I have to write the complete balanced molecular, ionic, and net ionic equations for the reaction of nickel II chloride + sodium phosphate. What product, if any, is a precipitiate? I started by getting NiCl2 + Na2(PO4) = (PO4)Ni + NaCl. Balancing it I got NiCl2 + Na2(PO4)Ni + 2NaCl. How do you go about figuring out the ionic and net ionic equations? Do I break them up into oxidation numbers? Ni has a +2 oxidarion number or am I totally going in the wrong direction? Thanks so much for your time

• chemistry -

Sodium phosphate is Na3PO4.
Write the balanced equation using that formula. That gives you the balanced MOLECULAR equation.
Now separate the molecules into ions using the following guidelines.
Gases are written as the molecule.
Precipitates (Ni3(PO4)2 is a ppt) are written as the molcule.
Weakly ionized substances (H2O is an example) are written as molecules.
Everything else is written as ions.

Next, look at ions on the left and right. Cancel ions common to both sides.
The result is the net ionic equation.

• chemistry -

i worked it out and got
NiCl2+ Na3(PO4)= Ni(PO4)+ 3NaCl2 for the balanced moloecualr equation.
Ni +2
Cl2 -1
Na3 +1
PO4 -3

Ni+2 = Cl2-1 + Na3+1 + (PO4)-3
Ni+2 + (PO4)-3 = Ni=2 (PO4)-3 for the net ionic equation

would the precipate be nickel II phosphate or Nickel III phosphate. being if i did thid correctly

• chemistry -

I gave you the formula for nickel phosphate AND told you it was a precipitate in my first response but you must have copied it down wrong. Here is how you do it. I'm adding (aq) to show the ones in solution and (s) to show the solid precipitate.
3NiCl2(aq) + 2Na3PO4(aq) ==> Ni3(PO4)2(s) + 6NaCl(aq)

The above is the balanced molecular equation. Now we separate it into ions with the rules I gave in my first response. To save time I will omit the (aq) after the ions.
3Ni^+2 + 6Cl^- + 6Na^+ + 2PO4^-3 ==>Ni3(PO4)2(s) + 6Na^+ + 6Cl^-

The above is the balanced ionic equation. The only thing I've done is to separate those aqueous solution into ion if they dissolve but show the ppt as a solid (s). Now to make the NET ionic equation, we cancel those ions common to both sides. Those are 6Cl^- and 6 Na^+ so the net ionic equation is
3Ni^+2(aq) + 2PO4^-3(aq) ==> Ni3(PO4)2(s)

## Similar Questions

1. ### Chemical Formulas and Reactions

When aqueous copper(II)chloride reacts with aqueous ammonium phosphate, soluble ammonium chloride forms and copper(II) phosphate precipitates out of solution. 1. Write the balanced molecular equationfor this reaction. 2. Write the …
2. ### Chemistry

For a reaction between sodium phosphate and strontium nitrate write out the following: a) The balanced molecular equation b) The ionic equation c) The net ionic equation a) I think I have this one: 2 Na3PO4 (aq) + 3 Sr(NO3)2 (aq) --> …
3. ### chemistry

Write the complete balanced molecular, ionic,and net ionic equations for the reaction of nickle II chloride + sodium phosphate. Which product,if any, is a precipitate?

Can you please help me with these problems, I followed the textbook but i am still not getting the write balanced equations.I am not sure if it is the phases or my balancing, or if i got the right answers and not submitting it correctly …
5. ### Chemistry

Write the net ionic equation for this reaction occurring in water: Sodium phosphate and calcium chloride are mixed to form sodium chloride and calcium phosphate. 1. No reaction occurs. 2. 2Na3PO4 + 3Ca2+ -> 6Na+ + Ca3(PO4)2 3. 2 …
6. ### AP Chemistry

Write the balanced molecular, complete ionic, and net ionic equations for the reactions that occur when the following are mixed. (Type your answer using the format [NH4]+ for NH4+ and [Ni(CN)4]2- for Ni(CN)42-. Use the lowest possible …
7. ### AP Chemistry

Write the balanced molecular, complete ionic, and net ionic equations for each of the following acid-base reactions. (Type your answer using the format [NH4]+ for NH4+ and [Ni(CN)4]2- for Ni(CN)42-. Use the lowest possible coefficients.) …
8. ### chemistry

Write the balanced molecular, complete ionic, and net ionic equations for the following reactions in aqueous solution: a. magnesium chloride reacts with potassium carbonate b. sulfuric acid reacts with sodium hydroxide
9. ### General Chemistry

When a solution of nickel (II) chloride is mixed with a stoichiometric amount of colorless sodium hydroxide solution, a green, gelatinous precipitate forms. (a) Write the balanced molecular equation and the net-ionic equation for this …
10. ### Chemistry

Write equations for the dissociation of the following in water. Do not include states in your answer. 1) sodium acetate (NaC2H3O2) NaC2H3O2 ---> Na+ + (C2H3O2)- 2) copper(II) perchlorate Cu(ClO4)2 ---> Cu2+ + 2(ClO4)- Enter balanced …

More Similar Questions