Los que hablen espanol quien me quiere pasar su i-n-s-t-a-g-r-a-m

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)

its first and third is your answer i did the qustion the fourth isnt right

that's what i got you can count the number of atoms

it is the most commonly accepted one