What do microwaves and x-rays have in common? they are visible. they are mechanical waves that require a medium. they are part of the electromagnetic spectrum. they carry sound.

Apulley with a mechanical advantage of 5 will require you to pull times the amount of rope. a. 1/5 b. 5 c. 10 d. 15

Ihave a density of 1.61g/cm^3 and a mass of 28g. find the missing value

The vapour pressure of benzene is 53.3 kpa at 60.6 °c, but it fell to 51.5 kpa when 19.0 g of a non-volatile organic compound was dissolved in 500 g of benzene. calculate the molar mass of the compound.