Describe an electron cloud. Then, name and explain a particular atomic model that used the concept of the electron cloud.

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)

answer; talc and gypsum;