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What is the complete oionic and net ionic equation for the following (including states of matter (solid/liquid/gas) in each):

1) Pb(NO₃)₂ + BaCl₂
2) Pb(NO₃)₂ + NiCl₂
3) NiCl₂ + KI
4) NaCl₂ + BaCl₂

1 Answer

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Final answer:

If the intended reaction is between NaCl and BaCl₂, no chemical reaction occurs as both compounds are soluble. For comparison, the reaction between BaCl₂ and Na₂SO₄ forming BaSO₄ and NaCl has been shown with the net ionic equation Ba²+(aq) + SO₄²⁻(aq) → BaSO₄(s).

Step-by-step explanation:

The question appears to be referencing a chemical reaction where typically a double displacement or metathesis reaction would take place. However, there is a typo in the given equation (NaCl₂) which does not exist as a proper chemical formula but will be assumed to mean NaCl for the purpose of this explanation. If the intent was to combine sodium chloride (NaCl) and barium chloride (BaCl₂), it is important to note that since both compounds are soluble in water, no reaction would occur because no precipitate, gas, or weak electrolyte would form. Thus, the complete ionic and net ionic equation would show that all ions remain in solution and no reaction takes place.

For the purpose of illustration, a different type of reaction will be used as an example. The reaction of barium chloride (BaCl₂) in aqueous solution with sodium sulfate (Na₂SO₄) in aqueous solution to form barium sulfate (BaSO₄) and sodium chloride could be represented as follows:

The overall balanced chemical equation is: BaCl₂(aq) + Na₂SO₄(aq) → BaSO₄(s) + 2 NaCl(aq)

The complete ionic equation is: Ba²+(aq) + 2 Cl⁻(aq) + 2 Na+(aq) + SO₄²⁻(aq) → BaSO₄(s) + 2 Na+(aq) + 2 Cl⁻(aq)

And the net ionic equation would be:

Ba²+(aq) + SO₄²⁻(aq) → BaSO₄(s)

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