Question

1) An experiment was conducted in a class where students were asked to blow air into a test tube containing lime water with the help of a straw. The observation of the experiment is shown in the image
a) What does this activity prove?
b) Write the chemical equation of this process

Answer 1

Answer:

a)The given activity proves the formation of insoluble white precipitate of Calcium carbonate

b) Ca(OH)2 + CO2 ➡️ CaCO3 + H2O