Which scientist observed that compounds are always joined together in fixed ratios?

A. Boyle

B. Bohr

C. Lavoisier

D. Proust

What intermolecular forces can exist in a gaseous sample of HCl? (Select all that apply.) A) dipole-dipole B) hydrogen bonding C) ion-dipole D) ion-induced dipole E) London dispersion

Which statement is correct about an element's identifying spectrum?

In which main energy level does the 's' sublevel first appear? K (first main energy level) L (second main energy level) M (third main energy level) N (fourth main energy level)

How many nanometers are in 22 milimeters

Why there are different branches of chemistry

Identify three types of coral reefs

A low pKa means the acid the strong. < - - - Is that right?

Does the buckminsterfullerene conduct electricity?

If an element has 2 valence electrons, how many dots will be in the elements dot diagram?

the state of water is determined solely by the conditions of: A) volume and mass B) temperature and volume C) pressure and mass D) pressure and temperature