Imagine a cation exchange column packed with mixture of cations: Pb2+, Ni2+, Sr2+, Co2+ and H+. In which order will they come out at the bottom of the column if an appro-
opriate eluent is allowed to percolate slowly down?

confusionnn this is confusing hope you have a good day thoo :)

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here is table 2-2:

country

percent of eligible voters that voted

rank

united states

44.9%

138

canada

60.1%

107

costa rica

84.6%

14

hungary

66.9%

82

japan

57.0%

118

egypt

27.7%

159

south africa

85.5%

10

ans is no, the data set cannot be plotted as a single circle graph