How many σ bonds are in the structure of the organic molecule below?

Which type of fossil does this image depict?

To prevent the presence of air, noble gases are placed over highly reactive chemicals to act as inert "blanketing" gases. a chemical engineer places a mixture of noble gases consisting of 4.37 g of he, 13.36 g of ne, and 36.65 g of kr in a piston-cylinder assembly at stp. calculate the partial pressure in torr of kr.

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