What's the name of the process that occurs as the dry ice undergoes a phase change in the flask

in theory, limestone is composed principally of the compound calcium carbonate - caco3, but in reality this compound is deposited in conditions involving a number of other compounds as impurities so it ends up being a mixture of many compounds.

hope this : -)

tony (lordcaos066)

can you list the answers so i can answer

what are the statements