Which statement best explains how electrons form a covalent bond in a molecule? A.
A pair of electrons splits so that each atom gets one electron.
B.
A pair of electrons belongs to two atoms at the same time.
C.
A pair of electrons is transferred from one atom to another atom.
D.
A pair of electrons moves from a lower energy level to a higher energy level.
E.
A pair of electrons drifts freely from one molecule to another.

Compare and contrast physical changes with chemical changes.

Which property of water causes water drops to bead on a freshly waxed car?

[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