Which of the following bonds is considered to be the most polar? O-Cl
N-F
H-S
N-O
Thank you in advance! :)

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

In france, grapes are 1.95 euros per kilogram. what is the cost of grapes, in dollars per pound, if the exchange rate is 1.14 dollars/euro? (2.6)