A solution is prepared by mixing 25 mL pentane (C3H12, d =
0.63 g/cm) with 45 mL hexane (C6H14, d = 0.66 g/cmº).
Assuming that the volumes add on mixing, calculate the mass
percent, mole fraction, molality, and molarity of the pentane.

Who is better, messi or cristiano, i need this for a chemistry class. asap

According to the tide table below what time of day will the highest tide occur?

Which statement correctly describes metallic bonds? a. they form when certain atoms lose electrons and other atoms gain electrons. b. they involve an attraction between anions and cations. they always involvpoth a metal and a nonmetal. d. they can only form between atoms of the same element. e. they form because electrons can move freely between atoms.