What is the density of a sample of chlorine gas that exerts a pressure of 4.5 atm in a 12.6 L container at 36 c (Answer in 4 digits)

Please help I'm so confused!

Concerning the 10.0 ml of 0.50 m nacl to 100 ml of solution: when a solution is diluted, does it change the number of moles dissolved?

Draw two cyclic constitutional isomers of cis-1

Which of the following is the correct definition of chemical energy? a. energy an object has because of its motion or position b. energy resulting from the flow of charged particles, such as electrons or ions c. energy produced from the splitting of atoms d. energy stored in chemical bonds of molecules