Question

B) ZnCO3 Ta HBr; e) Al₂(SO4)3 Ta KOH; и) Na₂SiO₂ та H₂SO4i;K) Al(OH)3 Ta HCI. ​

Answer 1

al2(so4)3+koh- k2so4+ al(oh)2

AL(OH)3+HCL=ALCL3+H20

Answer 2

B) ZnCO3 + HBr: The reaction between zinc carbonate (ZnCO3) and hydrogen bromide (HBr) results in the formation of zinc bromide (ZnBr2) and carbon dioxide (CO2) as follows:

ZnCO3 + 2 HBr → ZnBr2 + CO2 + H2O

e) Al2(SO4)3 + KOH: The reaction between aluminum sulfate (Al2(SO4)3) and potassium hydroxide (KOH) leads to the formation of aluminum hydroxide (Al(OH)3) and potassium sulfate (K2SO4) as follows:

Al2(SO4)3 + 6 KOH → 2 Al(OH)3 + 3 K2SO4

и) Na2SiO2 + H2SO4: The reaction between sodium silicate (Na2SiO2) and sulfuric acid (H2SO4) results in the formation of sodium sulfate (Na2SO4) and silicic acid (H2SiO3) as follows:

Na2SiO2 + H2SO4 → Na2SO4 + H2SiO3

K) Al(OH)3 + HCl: The reaction between aluminum hydroxide (Al(OH)3) and hydrochloric acid (HCl) forms aluminum chloride (AlCl3) and water (H2O) as follows:

Al(OH)3 + 3 HCl → AlCl3 + 3 H2O