Question

.3 What happenens when . 3 A. Copper Oxide reacts with Hydrochloric acid. B. Sodium Hydroxide reacts with Hydrochloric acid. C. Zinc Granules react with Hydrochloric acid. D. Sodium Carbonate reacts with Hydrochloric acid​

Answer 1

Answer:

A).When HCl reacts with copper oxide then copper chloride and water is obtained.

B).The reaction between sodium hydroxide (NaOH) and hydrochloric acid (HCl) is a neutralization reaction which results in the formation of a salt, sodium chloride (NaCl) , and water (H2O) . It is an exothermic reaction.

C).When dilute hydrochloric acid is added to granulated zinc placed in a test tube, zinc metal is converted to zinc chloride and hydrogen gas is evolved in the reaction. In the reaction we can see that a zinc chloride salt is formed and hydrogen gas is evolved.

D).When dilute hydrochloric acid reacts with sodium carbonate, then sodium chloride, carbon dioxide and water are formed. A brisk effervescence is seen in the release of carbon dioxide.