Which of the following is considered the first receiver for the nicotine in a smoking person? 1.left atrium
2.right atrium
3.left ventricle
4.right ventricle

What is the number of protons in this carbon atom? a. 12 b. 6 c. 18 d. 24

Problem 3. when the volume of a container of gas changes by a certain factor at a constant temperature, the pressure doubles. by what factor does the containers volume change?

Asample of gas in a cylinder as in the example in part a has an initial volume of 52.0 l , and you have determined that it contains 1.40 moles of gas. the next day you notice that some of the gas has leaked out. the pressure and temperature remain the same, but the volume has changed to 13.0 l . how many moles of gas (n2) remain in the cylinder?