Which of the following has the greatest mass for one mole of the compound?
A. SiH4
B. CO
C. CH3OH
D. C2H6

What is the molecular formula of a hydrocarbon with m+ = 166? (write the formula with no subscripts, e.g. c4h10.) what is the sum of rings and double bonds in this compound?

Energy is released during which phase changes? check all that apply. boiling condensing depositing freezing melting subliming

Which of the following is a testable hypothesis? a. if i brush my teeth, i will get fewer cavities than if i don't brush my teeth. b. green toothpaste tastes better than blue toothpaste or red toothpaste. c. smart, careful, healthy people always brush their teeth. d. it's wrong to not brush your teeth before you have an important conversation with someone.