Why did the water turn blue after the food coloring was added to the water

Where can i find naap lab answers sheet/key?

2. how is heavy water different from normal water

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?