Question

What are 2 observations that can be made when excess carbon dioxide is bubbled through limewater?

Answer 1

Explanation:

The cloudy white solution observedwhen CO2 is bubbled into limewater results from a reaction between Ca(OH)2 and either CO2 or H2CO3 to form an insoluble calcium carbonate precipitate.Excess CO2 or H2CO3 , however, reacts with the CO3 2- ion in this solution to form HCO3 -.