Which of the following is two or more atoms (same or different) bound together?
a. element
b. molecule
c. pure substance
d. mixture

Harvey mixes two liquids. which observation of the new mixture most likely indicates a precipitate is forming?

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?

The molality of calcium chloride (cacl2) in an aqueous solution is 2.46 m. what is mole fraction of the solute?