2. For each of the reactions below: Write formulas for the reactants. Then write

Question

2. For each of the reactions below: Write formulas for the reactants. Then write the potential products on the product side. Circle each product that removes ions from solution and note how: precipitate, gas, or molecule. Balance the equation if the reaction occurs. If no ions are removed (all are aqueous), then write NR. i. Lead(II) nitrate and potassium chloride. ii. Phosphoric acid and potassium hydroxide iii. Barium chloride and sodium sulfate iv. Chalk (calcium carbonate) and vinegar (acetic acid solution)

Explanation / Answer

i) Lead (II) nitrate (Pb(NO3)2)and potassium chloride(KCl)

Pb(NO3)2 (aq) + 2KCl (aq) -----> PbCl2(s) + 2KNO3 (aq)

IONIC EQUATION Pb2+ 2Cl- -----> PbCl2

ii) Phosphoric acid ( H3PO4) and Potassium hydroxide (KOH)

3KOH (aq) + H3PO4 (aq) ----> K3PO4 (aq) + 3 H2O (l)

IONIC EQUATION 3K+ PO42- -----> K3PO4 (aq)

iii) Barium Chloride and sodium suflate

  BaCl2(aq) + Na2SO4(aq) ------> 2NaCl(aq) + BaSO4(s)
IONIC EQUATION Ba2+ (aq) + SO42- (aq) ---> BaSO4 (s)

iv) Chalk (calcium carbonate) and vinegar (acetic acid solution)

2CH3COOH(l)+ CaCO3(s) --------> Ca(CH3COO)2(l)+CO2(g)+H2O(l)

IONIC EQUATION Ca2+ CH3COO---->  Ca(CH3COO)2(l)

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