HELLP ME IM LITERALLY CRYING BECAUSE OF HOW STRESSED OUT I AMM

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

The volume of an unknown substance in a sealed glass jar is 50 milliliters. the volume of the jar is 200 milliliters. which state of matter could the substance be?

What does a numerical subscript following an element in a chemical formula mean?