Which one of the following pair has the same number of ions?
(a)1 mole of nacl and 1 mole of mgcl2.
(b)1/2 mole of nacl and 1/2 mole ofmgcl2
(c)1/2 mole of nacl and 1/3 mole of mgcl3
(d)1/3 mole of nacl and 1/2 mole of mgcl2

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