Question

Question #a594e

Answer 1

`"K"_ 2"CO"_ (3(s)) -> "K"_ 2"O"_ ((s)) + "CO"_ (2(g))`

Explanation:

Potassium carbonate, `"K"_2"CO"_3`, will undergo thermal decomposition at temperatures that exceed `1000^@"C"` to produce potassium oxide, `"K"_2"O"`, and carbon dioxiede, `"CO"_2`.

The balanced chemical equation that describes this decomposition reaction looks like this

`"K"_ 2"CO"_ (3(s)) stackrel(color(white)(acolor(red)(Delta)aaa))(->) "K"_ 2"O"_ ((s)) + "CO"_ (2(g))` `uarr`

Notice that the chemical equation is balanced because you have `2` atoms of potassium, `1` atom of carbon, and `3` atoms of oxygen on both sides of the equation.