Question

WRITE CHEMICAL EQUATIONS FOR THE FOLLOWING:
(A) REACTION OF HYDROCHLORIC ACID WITH ZINC
(B) REACTION OF SODIUM BICARBONATE WITH SULPHURIC ACID.
(C) REACTION FOR FORMATION OF BAKING SODA (SOLVAY PROCESS)
(D) REACTION FOR FORMATION OF BLEACHING POWDER
(E) REACTION OF CARBON DIOXIDE WITH CALCIUM HYDROXIDE
(F) REACTION OF COPPER OXIDE WITH HYDROCHLORIC ACID ​

Answer 1

Answer:

Answers are

Explanation:

1.Zinc chloride + Hydrogen

Reason : The reaction between zinc and hydrochloric acid is ,

Zn+2HCl → ZnCl2+H2

This reaction is known as single replacement reaction, where zinc metal displaces the hydrogen to form hydrogen gas and zinc chloride, a salt.

2.Sodium bicarbonate + sulfuric acid will produce sodium sulfate + water + carbon dioxide:

2NaHCO3 + H2SO4(l) = Na2SO4 + 2H2O(l) + 2CO2(g)

Change in Free Energy: ΔG(20C) = -135.5kJ (negative, so the reaction runs)

Change in Enthalpy: ΔH(20C) = -30.6kJ (negative, so the reaction is exothermic)

3.The overall process is: 2 NaCl + CaCO3 → Na2CO3 + CaCl. ... In the second, carbon dioxide bubbles up through the ammoniated brine, and sodium bicarbonate (baking soda) precipitates out of the solution. Note that, in a basic solution, NaHCO3 is less water-soluble than sodium chloride.

4.Bleaching powder" is made by the action of chloride gas on calcium hydroxide, the reaction being essentially: 2Ca(OH)2 + 2Cl2 → Ca(OCl)2 + CaCl2 + 2H2O.

5.Calcium hypochlorite reacts with carbon dioxide to form calcium carbonate and release dichlorine monoxide. Calcium hypochlorite solution is basic.

6.Reactions. Copper(II) oxide dissolves in mineral acids such as hydrochloric acid, sulfuric acid or nitric acid to give the corresponding copper(II) salts: ... CuO + 2 HCl → CuCl2 + H2O. CuO + H2SO4 → CuSO4 + H2O.