Write balanced net ionic equAtions.
D) zinc chloride and excess ammonia
E) cupric phosphate and lots of ammonia
A) ammonia and excess zinc sulfate
What do you not understand? Can you write the balanced molecular equation?
I don't know what they form...
D) ZnCl2+ NH3--->
E) Cu3(PO4)2 +2NH4OH--->
A) NH3+ ZnSO4-->
I don't understand what it means by excess... How do I figure out what they form.
ZnCl2 and excess NH3 forms the ammine complex Zn(NH3)4Cl2
Cu ion reacts with NH4OH to form Cu(NH3)4^2+ complex ion.
NH3 and ZnSO4 does the same as ZnCl2 except it's Zn(NH3)4SO4 and not Zn(NH3)Cl2
To write balanced net ionic equations, you need to understand the concept of ionic compounds and their dissociation in solutions.
D) Zinc chloride and excess ammonia:
1. Start by writing the chemical formulas for zinc chloride and ammonia:
Zinc chloride: ZnCl2
Ammonia: NH3
2. Write the dissociation equations for each compound:
Zinc chloride: ZnCl2 → Zn2+ + 2Cl-
Ammonia: NH3 → NH4+ + OH-
3. Determine the net ionic equation by eliminating spectator ions that appear on both sides of the equation. In this case, the chloride ion (Cl-) is a spectator ion. The net ionic equation is:
Zn2+ + 2OH- → Zn(OH)2
E) Cupric phosphate and lots of ammonia:
1. Write the chemical formulas for cupric phosphate and ammonia:
Cupric phosphate: Cu3(PO4)2
Ammonia: NH3
2. Write the dissociation equations for each compound:
Cupric phosphate: Cu3(PO4)2 → 3Cu2+ + 2PO43-
Ammonia: NH3 → NH4+ + OH-
3. Determine the net ionic equation by eliminating spectator ions. In this case, the ammonium ion (NH4+) and hydroxide ion (OH-) are both spectator ions. The net ionic equation is:
3Cu2+ + 2PO43- → Cu3(PO4)2
A) Ammonia and excess zinc sulfate:
1. Write the chemical formulas for ammonia and zinc sulfate:
Ammonia: NH3
Zinc sulfate: ZnSO4
2. Write the dissociation equations for each compound:
Ammonia: NH3 → NH4+ + OH-
Zinc sulfate: ZnSO4 → Zn2+ + SO42-
3. Determine the net ionic equation by eliminating spectator ions. In this case, the ammonium ion (NH4+) and sulfate ion (SO42-) are spectator ions. The net ionic equation is:
Zn2+ + OH- → Zn(OH)2
Remember, the net ionic equation shows only the species directly involved in the chemical reaction, removing any spectator ions.