A22.4-l sample of which of the following substance, at stp, would contain 6.02 x 10^23 representative particles?
a. gold
b. sodium chloride
c. sulfur
d. carbon dioxide

Which of the following would have less momentum than a 52 kg cheetah running at 10 m/s?

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

Which element would mostly likely have an electron affinity measuring closest to zero