The cell membrane around a cell forms a barrier that protects and regulates the cell. certain chemicals can pass through the plasma membrane because they have similar chemical properties as the membrane. which best describes those that can pass through? they are concentrated. they are soluble. they are diluted. they are heated.

How do forces between particles in gases compare to forces in the other states of matter? o a. the forces in gases are stronger than forces in solids but weaker than forces in liquids. o b. the forces in gases are weaker than forces in solids but stronger than forces in liquids. o c. the forces in gases are weaker than forces in solids and liquids. o d. the forces in gases are stronger than forces in solids and liquids. submit

For the following dehydrohalogenation (e2) reaction, draw the zaitsev product(s) resulting from elimination involving c3–c4 (i. e., the carbon atoms depicted with stereobonds). show the product stereochemistry clearly. if there is more than one organic product, both products may be drawn in the same box. ignore elimination involving c3 or c4 and any carbon atom other than c4 or c3.

How many moles of air are there in a human lung with a volume of 2.4 l at stp? explain your answer