Question

Napisz pierwszym i drugim sposobem otrzymywania soli :

NaCl2, KCL, Ca2Cl2, CaCo3, K2SO4

Answer 1

I kwas +zasada ----> sól+ woda

II metal+kwas--->sól+wodór

 

1.    2HCl+NaOH --->NaCl_{2}+H_{2}O

       Na+2HCl--->NaCl_{2}+H_{2}

 

2.HCl+KOH--->KCl+H_{2}O

   

K+HCl--->KCl+  1/2H_{2}

 

3. 2HCl+Ca(OH)_{2}---> CaCl_{2}+2H_{2}O

   

  Ca+2HCl--->CaCl_{2}+H_{2}

 

4.H_{2}CO_{3}+Ca(OH)_{2}----> CaCO_{3} +2 H_{2}O

  

  Ca+H_{2}CO_{3}--->CaCO_{3}+H_{2}

 

5.H_{2}SO_{4}+2 KOH--->K_{2}SO_{4}+2 H_{2}O

  2 K+H_[2}SO_{4}---> K_{2}SO_{4} + H_{2}