PLEASE HELP, I WILL MARK YOU BRAINLEST!! Ex. A 20-gram object has a volume of 5 cm3.

Find its density. Remember D=Mass/volume

Diffraction is when light is bent around obstructions. which of the these observation about clouds would indicate diffraction? a) after rain storms, you can sometimes see rainbows. b) clouds are white or gray and cannot be seen through. c) on a cloudy day, the temperature tends to be cooler than a sunny day. d) the edges of dark clouds appear lighter. this

If you add 5.00 ml of 0.100 m sodium hydroxide to 50.0 ml of acetate buffer that is 0.100 m in both acetic acid and sodium acetate, what is the ph of the resulting solution? acetic acid: ka = 1.8. x 10-5

Which of these expressions are correct variations of the combined gas law? p1v1t2 = p2v2t1 both