Author: Anonymous

Of the 4 most commonly found elements in living things, which has the most valence electrons? (I could not find a periodic table large enough for this question, so I have this one. Disregard the outlining of certain elements and the extra information on the bottom)     

Adding NH3 (ammonia) to water makes NH4+. What will be the general pH of this new solution, and what will happen to the ion concentrations?

The buffer reaction shown by this equation H2CO3 < ------ > H+ + HCO3-  indicate that

Which of the following would be considered to be a strong base?

Which functional group when attached to a hydrocarbon chain will allow that molecule to act as a base?

Rank these items in order from MOST basic to LEAST basic: 1. pH = 9 2. [H+] = 10-2 3. pH = 3 4. [H+] = 10-11 5. [H+] = 10-5

BONUS question: Please select  all that apply. Bonus points will be added manually after the exam window has closed.

A solution at pH 1 contains __________ than the same amount of a solution at pH 4.

Which of the following statements is NOT true about electron configurations?

The number of ______ is the same for all atoms of the same element.