Hi, need help with my chemistry homework. The question is:

The glycosidic bond is formed by the reaction of a hemiacetal hydroxyl of monosaccharides with:
a) mineral acids
b) organic acids
c) alcohols
d) ethers

Any reaction would be appreciated, thanks.

Aroller coaster car is traveling down a track at 22 m/s. the car has a mass of 2000 kg. what is the kinetic energy of the car? a) 22,000 j b) 968,000 j c) 484,000 j d) 44,000 j

If an area has high air pressure and low humidity, what type of weather will it most likely have? plz !

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.