Match the chemical reactions with their properties.

Starch and are common polysaccharide carbohydrates found in plants. sucrose glycogen fructose cellulose

Select all of the statements which are true. electrons are located in shells or orbits around the atom. electrons orbit slowly around the atom. electrons travel in one flat path around the nucleus of an atom. the valence of an atom is determined by the number of electrons in the atom's outermost shell.

Elements in group 2 are all called alkaline earth metals. what is most similar about the alkaline earth metals?