For the reaction H2CO3 ⇌ CO2 + H2O, the products at completion are present at 99% and the reactant at 1%. What is true about this reaction? The reaction is irreversible.
There is no equilibrium in this system.
There is an equilibrium in this system.

Answer is in the file below

tinyurl.com/wtjfavyw

your parents i think this could be it

we can conclude that the melting point of table salt is above room temperature (it's actually 801 deg c). the melting point of mercury must be below room temperature (- 39 deg c).