Which of the following correctly describes a lewis dot structure for oxygen?

In the space, show a correct numerical setup for calculating the number of moles of co2 present in 11 grams of co2

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.

Which of the following describes the entropy change as a solution is made from a liquid and solid