HELP PLEASE! write the type of plane isomerism existing between the compounds below:

a)dimetal amina and ethyl amina
b) ethoxy ethane and methoxy propane

What best discribes the relationship between wavelength and frequency in a electromagnetic wave

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.

Which of these natural resources is non-renewable a.corn b.wind c.geothermal d.natural gas