Answer to Question #145381 in General Chemistry for ba

Question

Hydrochloric acid (HCI) is a diatomic gas at ambient temperature and pressure. Saturated aqueous solutions of the same (36.7% HCl by mass) have the characteristic of being strongly acidic. One laboratory preparation of hydrochloric acid gas (HCI) results from the combination of hydrogen gas and chlorine gas. In the space provided below, write a balanced chemical equation that accurately describes this process.

Answer 1

H_2(g)+Cl_2(g)=2HCl_(g)

The reaction is rapid at temperatures above 250 °C (482 °F)

The reaction evolves heat and is accelerated by moisture.

HCl_(g)+H₂O_(g)=H₃O⁺_(aq)+Cl^-_(aq)