Which formulas represent two polar molecules?
(1) co2 and hcl (3) h2o and hcl
(2) co2 and ch4 (4) h2o and ch4

How would the number of moles (n) of o2 change if the atmospheric pressure doubled but all other variables stayed the same

Based on its chemical properties, identify the position of each chemical family on the periodic table.

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