354.4 g of chlorine gas (MW=70.9g/mol) is held in a vessel with a fixed volume of 70.0 L. What is the pressure of the gas in atmospheres if its temperature is 30.0 Celsius?

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

If we compare and contrast electromagnetic waves with sound waves, all but one statement is true. that is a) sound waves require a medium to travel while electromagnetic waves do not. b) electromagnetic waves can travel through the vacuum of space while sound waves cannot. c) electromagnetic waves must have a medium in which to travel, but sound waves can travel anywhere. eliminate d) sound waves must bounce off of matter in order to travel while electromagnetic waves do not require matter to be present.

How many grams of magnesium metal will react completely with 8.3 liters of 5.5m hcl? show all work