Chemistry

For each of the following, write a net ionic equation (modeled above). Wherever there is a precipitate, state the name of the precipitate (e.g “lead iodide” from above). Pop onto the net and see if you can find a description of the physical properties (e.g colour) of this precipitate.

IS THIS CORRECT?

1. Mixing solutions of sodium bromide with magnesium nitrate
Net ionic equation: Na+(aq) + Br(aq) + Mg+2(aq) + NO3-(aq)  no rxn
Precipitate: N/A

2. Mixing solutions of barium acetate with sodium phosphate
Net ionic equation: Ba+2(aq) + CH3COO-(aq) + Na+(aq) + PO4-3(aq)  no rxn

3. Mixing solutions of thallium sulphate with magnesium chloride
Net ionic equation: Te+(aq) + SO32-(aq) + Mg2+(aq) + Cl-(aq)  Te+(aq) + Cl-(aq) + MgSO3 (s)
Precipitate: Yes

4. Mixing solutions of strontium chloride with copper sulphate
Net ionic equation: Sr2+(aq) + Cl-(aq) + Cu+(aq) + SO3-2(aq)  Cl-(aq) + Cu+(aq) + SrSO3(s)
Precipitate: Yes

5. Mixing solutions of copper acetate with potassium chloride
Net ionic equation: Cu+(aq) + CH3COO-(aq) + K+(aq) + Cl-(aq)  no rxn
Precipitate: N/A

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  1. 1. Mixing solutions of sodium bromide with magnesium nitrate
    Net ionic equation: Na+(aq) + Br(aq) + Mg+2(aq) + NO3-(aq)  no rxn
    Precipitate: N/A
    This looks ok.

    2. Mixing solutions of barium acetate with sodium phosphate
    Net ionic equation: Ba+2(aq) + CH3COO-(aq) + Na+(aq) + PO4-3(aq)  no rxn
    Isn't Ba3(PO4)2 insoluble?

    3. Mixing solutions of thallium sulphate with magnesium chloride
    Net ionic equation: Te+(aq) + SO32-(aq) + Mg2+(aq) + Cl-(aq)  Te+(aq) + Cl-(aq) + MgSO3 (s)
    Precipitate: Yes
    Thallium isn't Te. sulfate isn't SO4^-2. Yes is correct but the question asks you to name the ppt.

    4. Mixing solutions of strontium chloride with copper sulphate
    Net ionic equation: Sr2+(aq) + Cl-(aq) + Cu+(aq) + SO3-2(aq)  Cl-(aq) + Cu+(aq) + SrSO3(s)
    Precipitate: Yes
    copper sulphate is CuSO4. The ppt is SrSO4 and it is white.

    5. Mixing solutions of copper acetate with potassium chloride
    Net ionic equation: Cu+(aq) + CH3COO-(aq) + K+(aq) + Cl-(aq)  no rxn
    Precipitate: N/A
    copper(II) acetate is Cu(CH3COO)2.

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  2. 3. Mixing solutions of thallium sulphate with magnesium chloride
    Net ionic equation: Te+(aq) + SO32-(aq) + Mg2+(aq) + Cl-(aq)  Te+(aq) + Cl-(aq) + MgSO3 (s)
    Precipitate: Yes
    Thallium isn't Te. sulfate isn't SO4^-2. Yes is correct but the question asks you to name the ppt.
    oops. Thallium isn't Te. sulfate isn't SO3^-2. It is SO4^-2.

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