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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?

Based on your knowledge of the polarity of water molecules, the solute molecule depicted here is most likely ________.