Six test tubes contain magnesium chloride solutions. Pour the following solutions into each of the test tubes

| December 8, 2020 | education

Six test tubes contain magnesium chloride solutions. Pour the following solutions into each of the test tubes: a) sodium hydroxide; b) potassium sulfate; c) sodium carbonate; d) zinc nitrate; e) potassium phosphate; f) sodium sulfide. Write down the equations for the reactions to the end, in molecular and ionic form.

MgCl2 + 2NaOH ⟶ 2NaCl + Mg (OH) 2 ↓
Mg2 + + 2Cl- + 2Na + + 2OH- ⟶ 2Na + + 2Cl- + Mg (OH) 2 ↓
Mg2 + + 2OH- ⟶ Mg (OH) 2 ↓

MgCl2 + K2SO4 ⇸ the reaction does not proceed, since no precipitate or gas is formed.

MgCl2 + Na2CO3 ⟶ 2NaCl + MgCO3 ↓
Mg2 + + 2Cl- + 2Na + + CO32- ⟶ 2Na + + 2Cl- + MgCO3 ↓
Mg2 + + CO32- ⟶ MgCO3 ↓

MgCl2 + Zn (NO3) 2 ⇸ the reaction does not proceed, since no precipitate or gas is formed.

3MgCl2 + 2K3PO4 ⟶ 6KCl + Mg3 (PO4) 2 ↓
3Mg2 + + 6Cl- + 6K + + 2PO43- ⟶ 6K + + 6Cl- + Mg3 (PO4) 2 ↓
3Mg2 + + 2PO43- ⟶ Mg3 (PO4) 2 ↓

MgCl2 + Na2S ⟶ 2NaCl + MgS ↓
Mg2 + + 2Cl- + 2Na + + S2- ⟶ 2Na + + 2Cl- + MgS ↓
Mg2 + + S2- ⟶ MgS ↓



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