How long would it take a radio wave with a frequency of 6.50 ✕ 108 hz to travel from mars to earth if the distance between the two planets is approximately 8.00 ✕ 107 km?

Which statement explains why the bonds between non metals tend to be covalent? the bonds are found to be nondirectional they have large differences in electronegativity they have small differences in electronegativity they have ions that produce an electrostatic pull

What volume would 2.25 moles of ne has occupy at stp?

The same side of the moon always faces earth because the