What is the Empirical Formula of Baking soda, salt, sugar, and vanillin?

What are the similarities of physical and chemical change ?

Which of the following represents the ester functional group? a. -coo- b. -cho c. -cooh d. c=o

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.