How many moles of water contain 1.3 x 10^24 molecules? a. 7.8 x 10^47 b. 0.72 moles c. 2.2 moles d. 3.9 x 10^24

Great amounts of electromagnetic energy from our sun and other bodies in space travel through space. which is a logical conclusion about these electromagnetic waves? their energy must be very their frequency must be very low these waves can travel without a medium they only travel through a vacuum of space