Question

Which equation has both a liquid and a gas as products?

Answer 1

I believe the correct answer is option A. The equation that has both a liquid and a gas as products is:

2HgO(s)->2Hg(I)+O2(g)

Looking at the state of the products, we have l and g which means for liquid and gas, respectively. This is not exhibited by other choices presented.

Answer 2

A

Reactants are to the left of the arrow and products are to the right of the arrow
(l)=liquid
(g)=gas
(s)=solid