Question

1.Составить уравнения возможных реакций в молекулярном и ионом виде: а) PbCl2+Na2So3= б) ZnCl2+H3Po4= в) K2So4+NaCl= 2)Между какими из перечисленных веществ возможно уравнение реакций: Hcl, Mg(OH)2, Mg, So3, MgO, Ag Помогите)) Решите что сможете)))

Answer 1

1) б) 3 ZnCl2 + 2 H3PO4 = 6 HCl + Zn3(PO4)2 

    В)2NaCl+K2SO4=Na2SO4+2KCL

 

2)Mg(OH)2+2HCl=MgCl2+2H2O.

   Mg + 2HCl =MgCl2 + H2 

   MgO + 2HCL-> MgCL2 + H2O

   2 Ag + 2 HCl = 2 AgCl + H2

 

   Mg(OH)2 + 2SO3 → Mg(HSO4)2

 

   MgO+SO3=MgSO4

   

Answer 2

Formulation of Chemical Equations

a) PbCl2 + Na2SO3:

The molecular equation for the reaction between lead(II) chloride (PbCl2) and sodium sulfite (Na2SO3) can be represented as:

PbCl2 + Na2SO3 → PbSO3 + 2NaCl

The ionic equation for the reaction is:

Pb2+ + 2Cl- + 2Na+ + SO3^2- → PbSO3 + 2Na+ + 2Cl-

b) ZnCl2 + H3PO4:

The molecular equation for the reaction between zinc chloride (ZnCl2) and phosphoric acid (H3PO4) can be represented as:

3ZnCl2 + 2H3PO4 → Zn3(PO4)2 + 6HCl

The ionic equation for the reaction is:

3Zn^2+ + 6Cl- + 2H3PO4 → Zn3(PO4)2 + 6H+ + 6Cl-

c) K2SO4 + NaCl:

The molecular equation for the reaction between potassium sulfate (K2SO4) and sodium chloride (NaCl) can be represented as:

K2SO4 + 2NaCl → 2KCl + Na2SO4

The ionic equation for the reaction is:

2K+ + SO4^2- + 2Na+ + 2Cl- → 2K+ + 2Cl- + Na2SO4

Possible Reactions Between Listed Substances

The possible reactions between the listed substances are as follows:

1. HCl and Mg(OH)2: A possible reaction between hydrochloric acid (HCl) and magnesium hydroxide (Mg(OH)2) can be represented as: 2HCl + Mg(OH)2 → MgCl2 + 2H2O

2. Mg and SO3: Magnesium (Mg) does not react with sulfur trioxide (SO3) under normal conditions.

3. MgO and HCl: A possible reaction between magnesium oxide (MgO) and hydrochloric acid (HCl) can be represented as: MgO + 2HCl → MgCl2 + H2O

4. Ag and HCl: A possible reaction between silver (Ag) and hydrochloric acid (HCl) can be represented as: 2Ag + 2HCl → 2AgCl + H2

5. MgO and H2O: Magnesium oxide (MgO) reacts with water (H2O) to form magnesium hydroxide (Mg(OH)2): MgO + H2O → Mg(OH)2

6. Ag and H2O: Silver (Ag) does not react with water (H2O) under normal conditions.

7. Mg and HCl: A possible reaction between magnesium (Mg) and hydrochloric acid (HCl) can be represented as: Mg + 2HCl → MgCl2 + H2

Conclusion

The provided chemical equations and possible reactions between the listed substances should help in understanding the chemical interactions between these compounds. If you have further questions or need additional assistance, feel free to ask!