Which of the following compounds would NOT be expected to exhibit a linear molecular geometry?

What is the mass of each element in a 324.8 sample of co2

Butane gas reacts with oxygen gas to give carbon dioxide gas and water vapor (gas). if you mix butane and oxygen in the correct stoichiometric ratio, and if the total pressure of the mixture is 390 mmhg, what is the pressure (in mmhg) of water vapor after the reaction is completed (temperature and volume do not change).

What is the difference between a substance "getting wet" and "being dissolved" in a liquid at the particulate level?