Electrons are capable of emitting energy in the form of light at very narrow ranges of wavelengths. these wavelengths can be measured to find the electron's
a. mass.
b. density.
c. energy level.
d. specific heat.

Which best explains why an iceberg floats?

How many oxygen atoms are there in 3.15 moles of hcl manganese (iv) oxide, mno2

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.