Question

Which formula equation shows a reversible reaction?

a. 2Na+F2–> 2NaF
b. CaCO3–> CaO+CO2
c. NH4CI(s)—–NH3(
g.+HCI(
g. 2H2O2(aq)–pt—> 2H2O(I)+O2(
g.?

Answer 1

Its c I just took the test

Answer 2

The formula equation that shows a reversible reaction is

NH4Cl (s) ⇔ NH3 (g) + HCl (g) ( answer C)

Explanation

• Reversible reaction is a chemical reaction where the reactants form products , where in turn react together to form reactant back.

• The reaction of NH4Cl (s)⇔ NH3(g) + HCl (g) is a reversible reaction since NH4Cl decompose to form NH3 and HCl which in turn react together to form NH4Cl back .