Question 1 (Multiple Choice Worth 2 points) In the table below, which statement would best fill the missing box under "Open System"? Open System Closed System Matter freely moves Matter does not freely move Energy can enter or leave Energy is constant Energy is not exchanged Energy is freely exchanged Energy does not freely move

What happens to the average kinetic energy of a gas when the particles of the gas collide against each other at a constant temperature and volume? explain your answer.

What is the volume of 2.5 moles of nitrogen gas (n2)at standard temperature and pressure (stp)?

[08.05] which answer provides the correct name for name the following hydrocarbon? (2 points) moving left to right: a hydrocarbon chain made of a methyl group (ch subscript three) single bond carbon triple bond carbon single bond ch bonded to a methyl group (ch subscript three) and a chain including a methelyne group (ch subscript two) single bond methyl group (ch subscript three). 4-ethyl-2-pentyne 4-methyl-2-hexyne 2-heptyne 4-methy-hexane