4.
1 point
A chromatogram obtained from the chromatography of four substances is shown.
W...
Chemistry, 22.03.2021 21:30, msladycie8831
4.
1 point
A chromatogram obtained from the chromatography of four substances is shown.
Which substance has an Rf value of 0.6?
solvent front
10.5 cm
6.3 cm
5.8 cm
5.5 cm
5.2 cm
baseline
А
B
C
D
A
B
С
OD
Answers: 2
Chemistry, 22.06.2019 23:00, genyjoannerubiera
In the reaction h2co3 (aq) + 3nh3 (aq) = 2 nh4+ (aq) + co3 2-, how many electrons are transferred?
Answers: 3
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