Which of these are correct? ( you can pick more than 1 )

Which of the following is a physical property flammability heat of combustion solubility and toxicity

How do you convert celsius to kelvins

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.