What is the structure of our galaxy? (if you could make the answer as simple as possible, that would help a lot! If not, that's okay t - thank you for the help! <3)

You have a sample of a gas that occupies a volume of 17ml at -111 degrees celsius. what volume does the sample occupy at 88 degrees celsius? show all work asap

What is the molar mass of potassium nitrate, kno3

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