Cho 450 ml H2SO4 1 M vào 600 ml NaOH 1.5 M tính Cm các chất tan trong dung dịch sau phản ứng

Draw the skeletal structures of two different molecules that are each made of 5 carbon atoms and 12 hydrogen 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.

Find the midpoint of a segment with endpoints of 4-3i and -2+7i