Question

9.Дописати рівняння реакцій a) HCl + КОН= в) Mg(OH)2 = д) Al(OH)3 + HCl = б) H2SO4 + Cr(OH)3 = г) FeCl2 + КОH=​

Answer 1

Відповідь:

Пояснення:

а) KOH + HCl → H2O + KCl

б) 3H2SO4 + 2Cr(OH)3 → Cr2(SO4)3 + 6H2O

в)2Mg(OH)2 + O2 → 2MgO + 4OH

г)FeCl2 + 2 KOH → Fe(OH)2 + 2 KCl

д)Al(OH)3 + 3HCl → AlCl3 + 3H2O

Answer 2

a) HCl + KOH = H2O + KCl b) H2SO4 + Cr(OH)3 = H2O + Cr2(SO4)3 c) Al(OH)3 + HCl = AlCl3 + H2O d) FeCl2 + 2KOH = Fe(OH)2 + 2KCl

a) HCl + KOH = H2O + KCl

The balanced equation for the reaction between hydrochloric acid (HCl) and potassium hydroxide (KOH) is:

HCl + KOH = H2O + KCl [[1]]

In this reaction, hydrochloric acid reacts with potassium hydroxide to produce water and potassium chloride.

b) H2SO4 + Cr(OH)3 = H2O + Cr2(SO4)3

The balanced equation for the reaction between sulfuric acid (H2SO4) and chromium hydroxide (Cr(OH)3) is:

H2SO4 + Cr(OH)3 = H2O + Cr2(SO4)3 [[2]]

In this reaction, sulfuric acid reacts with chromium hydroxide to produce water and chromium(III) sulfate.

c) Al(OH)3 + HCl = AlCl3 + H2O

The balanced equation for the reaction between aluminum hydroxide (Al(OH)3) and hydrochloric acid (HCl) is:

Al(OH)3 + HCl = AlCl3 + H2O [[3]]

In this reaction, aluminum hydroxide reacts with hydrochloric acid to produce aluminum chloride and water.

d) FeCl2 + 2KOH = Fe(OH)2 + 2KCl

The balanced equation for the reaction between ferrous chloride (FeCl2) and potassium hydroxide (KOH) is:

FeCl2 + 2KOH = Fe(OH)2 + 2KCl [[4]]

In this reaction, ferrous chloride reacts with potassium hydroxide to produce ferrous hydroxide and potassium chloride.

Please note that these balanced equations represent the stoichiometry of the reactions, where the number of atoms of each element is equal on both sides of the equation.