What best explains the formula unit for a compound made from fluorine and hydrogen? (5 points) a HF, because fluorine is short of one electron, and hydrogen is in excess of one electron. b HF, because both fluorine and hydrogen are capable of forming only one covalent bond. c H2F, because fluorine is short of two electrons, and hydrogen is short of one electron. d H2F, because fluorine is capable of forming one, and hydrogen is capable of forming two covalent bonds.

[ou.03jthe pictures below show the wavelengths and intensities of electromagnetic radiations emitted by three stars, star 1, star 2, and star 3. intensity intensity- intensity- 1000 3500 6000 8500 11000 wavelength (a) star 1 1000 3500 6000 8500 11000 1000 3500 6000 8500 11000 wavelength (a) wavelength (a) star 2 star 3 which of these statements is correct about the color of the three stars? star 2 is white in color o star 2 is yellow in color star 1 and star 3 are yellow in color star 1 and star 3 are white in color

Fred is studying a substance that is made out of only one element. this means that

Witch two conditions can limit the usefulness of the kinetic molecular theory in describing gas behavior?