Which helps explain why Mercury has many craters on its surface? A. It is close to the Sun.
B. It is smaller than Earth.
c. It is less dense than Earth.
D. It has a slow rotation period.
E it has almost no atmosphere.

What best discribes the relationship between wavelength and frequency in a electromagnetic wave

Which statement is true about the model of the electromagnetic spectrum a: it change the frequencies of light. b: it compare wavelengths of light. c: the color of light waves can be changed using the model. d: the intensities of light waves can be decreased using the model.

How many formula units in 2.63 mols of nacl?