A) the bars are the same color b) bar one and bar two span 2 months, but the third bar spans 3 months

c) the number sold should've counted to 1,000

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.

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tony (lordcaos066)

the mass of the cathode increases because ions from the solution get reduced to atoms and become part of the cathode.

explanation:

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