2. (4 pts) There are N, molecules in the air. There is also liquid N2. Draw a molecular level picture that shows the difference between the two

3. (4 pts) CH3CH2OH (shown below) is soluble in water. Draw a molecular level picture
that represents after CH3CH2OH has been dissolved in water.

When a comet collides with earth, it adds material to our planet and causes great damage. therefore, a collision like this is a a. destructive force b. constructive force c. geologic process and event d. constructive and destructive force

Calculate the number of molecules present in 0.750 mol of mgo.

Ethanol (c2h5oh) is produced from the fermentation of sucrose in the presence of enzymes. c12h22o11(aq) + h2o(g) 4 c2h5oh(l) + 4 co2(g) determine the theoretical yield and the percent yields of ethanol if 680. g sucrose undergoes fermentation and 326.5 g ethanol is obtained. theoretical _ g _ percent %