If there are 10.00 grams of HF in a 750 ml solution, what is the concentration of this solution in molarity?

Nuclear fusion is the source of energy for stars. besides hydrogen, which other element is most likely also common in stars?

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

A50.0 ml sample of gas at 20.0 atm of pressure is compressed to 40.0 atm of pressure at constant temperature. what is the new volume? 0.0100 ml 0.325 ml 25.0 ml 100. ml