Bonjour! pouvez-vous m’aidez dans le questions c, d,e? merci d’avance!

You may expect bonds between two atoms which each have n covalent lonic metallic hydrogen

What is the molar mass of potassium nitrate, kno3

The twister and runaway train are two coasters at the same amusement park. both coasters start at the same height. the coaster for the twister is twice the mass of the coaster for the runaway train. which roller coaster has greater gravitational potential energy at the start of the ride?