Unlike the earth, the sun

does not have an atmosphere.

is not a sphere.

does not have a core.

does not have a solid surface.

Determine the wavelength of the light absorbed when an electron in a hydrogen atom makes a transition from an orbital in the n=3 level to an orbital in the n=7 level.

Reaction rate depends on how many molecules are coming into contact with each other with enough energy to react. increasing the temperature of the reactants will increase -

Air can be considered a mixture. which statement does not explain why?