Question

(i) Solution of a substance 'X' is used for testing
carbon dioxide. Write the equation of the reaction
of 'X' with carbon dioxide.
(ii) How is 'X' obtained ? Write chemical equation.​

Answer 1

Answer:

(i) Substance X is lime water. Ca(OH)2 + CO2 → CaCO3 + H2O Ca(OH)2 -(Lime water) CO2 -(Carbon dioxide) CaCO3 -(Calcium carbonate) H2O - (Water)

(ii) Calcium oxide reacts vigorously with water to produce slaked lime (calcium hydroxide) releasing a large amount of heat. CaO(s) + H2O(l)→ Ca(OH)2(ag) CaO(s) - (Quicklime) Ca(OH)2(ag) - (slaked Lime)

I hope this helps u.

thanks

Answer 2

Answer:

Co2+o2=2co. when the measurement of oxygen is little