Question

MgO-->MgCl2-->MgCO3-->MgCl2-->Mg3(PO4)2

Answer 1

MgO+2HCl=MgCl2+H2O
MgCl2+Na2CO3=2NaCl+MgCO3
MgCO3+2HCl=MgCl2+H2O+CO2
3MgCl2+2K3PO4=Mg3(PO4)2+6KCl

Answer 2

The chemical reactions you provided involve the transformation of magnesium oxide (MgO) into different compounds through a series of reactions. Here's a step-by-step breakdown of the reactions:

1. MgO → MgCl2: This reaction involves the reaction of magnesium oxide with hydrochloric acid (HCl) to produce magnesium chloride (MgCl2) and water (H2O).

2. MgCl2 → MgCO3: In this reaction, magnesium chloride (MgCl2) reacts with sodium carbonate (Na2CO3) to form magnesium carbonate (MgCO3), sodium chloride (NaCl), and water (H2O).

3. MgCO3 → MgCl2: The magnesium carbonate (MgCO3) can be converted back to magnesium chloride (MgCl2) by reacting it with hydrochloric acid (HCl). This reaction produces magnesium chloride and carbon dioxide (CO2) gas.

4. MgCl2 → Mg3(PO4)2: Finally, the magnesium chloride (MgCl2) reacts with phosphoric acid (H3PO4) to produce magnesium phosphate (Mg3(PO4)2) and hydrochloric acid (HCl).

Overall, the series of reactions can be summarized as follows:

MgO + HCl → MgCl2 + H2O MgCl2 + Na2CO3 → MgCO3 + NaCl + H2O MgCO3 + HCl → MgCl2 + CO2 + H2O MgCl2 + H3PO4 → Mg3(PO4)2 + HCl

Please note that these reactions are theoretical and might not occur exactly as described in a laboratory setting without specific conditions or catalysts. Additionally, the equations assume that all reactants and products are in their stoichiometric ratios.