5.You are given an unknown substance X and told that it could be one of three substances L, M or N. You carried out chromatography and obtained the two sets of chromatograms below. From the chromatograms, deduce the identity of X.

The alkali metals (group 1) consist of lithium (3), sodium (11), potassium (19), rubidium (37), cesium (55), and francium (87). they are soft, metallic solids with low densities and low melting points. based on the data shown in figure 1, how many valence electrons do alkali metals share?

What shape would a molecule with two bound groups and two lone pairs have?

Scientists have developed an explanation of a phenomenon from several verified hypotheses. the explanation has been confirmed through numerous experimental tests.which option best describes this explanation? a. scientific lawb. research questionc. hypothesisd. scientific theory