Which of the following solutions is a buffer?

a) a solution made by mixing 100 ml of 0.100 m hclo and 50 ml of 0.100 m hcl .
b) a solution made by mixing 100 ml of 0.100 m hclo and 500 ml of 0.100 m naoh .
c) a solution made by mixing 100 ml of 0.100 m kclo and 50 ml of 0.100 m kcl .
d) a solution made by mixing 100 ml of 0.100 m hclo and 50 ml of 0.100 m naoh

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.

What is the typical rotational frequency frot for a molecule like n2 at room temperature (25∘c)? assume that d for this molecule is 1å=10−10m. take the total mass of an n2 molecule to be mn2=4.65×10−26kg. you will need to account for rotations around two axes (not just one) to find the correct frequency. express frot numerically in hertz, to three significant figures.

Select the correct answer. wax is a nonpolar substance. in which type of substance is it the most soluble?