In 2-4 sentences, summarize what you know about EM waves. PLEASE HURRY! I'M TIMED! WILL GIVE BRAINLIEST!

Select the correct answer from each drop-down menu. compared to its surroundings, the concentration of solutes is low inside a cell. so, the cell is with respect to its surroundings. a particular solute in this cell uses energy for its transport from the cell to its surroundings. this type of transport is called

True or false when elements combine to form a mixture, the resulting chemical properties may be very different from those of the elements that make it.

On a day when the barometer reads 75.23 cm, a reaction vessel holds 250 ml of ideal gas at 20 celsius. an oil manometer ( ρ= 810 kg/m^3) reads the pressure in the vessel to be 41 cm of oil and below atmospheric pressure. what volume will the gas occupy under s.t.p.?