A compound contains 76.6% C, 6.38% H and 17.0% O. What is the empirical formula for the compound

Exit what is the density of an object having a mass of 5.0 g and a volume of 45.0 cm3?

Which of the following is a solution a- brewed coffee b-tomato juice c- ranch salad dressing d- muddy water

How is it possible for someone to put an ear to a wall and hear someone in the next room?     a.sound waves can travel though solids.    b.the waves travel from room to room via air.    c.there must be some air in the wall so the sound can travel through it.    d.sound waves change to electromagnetic waves and then back again.