In acid-base balance, the normal PCO2 and HCO3 levels are disturbed.  Match the changes in these imbalances with the correct disorder:  Increased PCO2 levels.

QUIZ PROBLEM #4 Instructions:  Type your answer to the question in the textbox below. Show all work on your “work” page.  Label which problem it is (#4). Question: You mix 185 mL of a calcium chloride solution with enough water to create 4.25 L of a solution that is 0.263 M in CaCl2. What was the molarity of the original calcium chloride solution?

QUIZ PROBLEM #3 Instructions:  Type your answer to the question in the textbox below. Use the T2 button to format subscripts.  Remember to turn it on, then turn it off. Show all work on your “work” page.  Label which problem it is (#3). Question: An unknown compound is found to have the following composition, by mass: 15.8% Al 28.1% S 56.1% O What is the empirical formula for this compound?

QUIZ PROBLEM #3 Instructions: Choose the ONE best answer to the question. There is no need to write anything on your “work” pages.   Question: Some CrBr3 is added to a beaker of water and it dissolves.  This compound is a strong electrolyte. Which one of the following diagrams best represents this mixture at the atomic level?  Note:  “W” represents a water molecule.

The midterm is on ______.   The month (as an integer 1 for January …): [m1] The day (as an integer 1 for the first day of the month …): [d1]

QUIZ PROBLEM #1 Instructions: Choose the ONE best answer to the question. There is no need to write anything on your “work” pages. Question: According to kinetic molecular theory, for molecules at the same temperature, is random motion faster for molecules with a larger or smaller mass?  

QUIZ PROBLEM #6 Here is a molecular equation: 3 Sn (s)  +  2 AuBr3 (aq)   –>   2 Au (s)  +  3 SnBr2 (aq) Instructions: On your “work” page, write the two equations described here.  Label them 6A or 6B. A.  Write the balanced total ionic equation for the reaction shown above. B.  Write the balanced net ionic equation for the reaction shown above. Type the answers to these questions in the textbox below.  Label them C or D. C.  What is oxidized in this reaction?  How can you tell?  Be specific. D.  What is reduced in this reaction?  How can you tell?  Be specific.  

Select ALL of the following plant cell organelles which contain DNA

QUIZ PROBLEM #5 Instructions: On your “work” page, write molecular, total ionic, and net ionic equations for the aqueous reaction between these two compounds: Mn(ClO4)3  and  KOH Label which problem it is (#5). Clearly label your final answers for all three equations, which should all be balanced. Type an X in the textbox here when you are finished so Canvas will mark the question as answered.

QUIZ PROBLEM #7 Instructions:  Type your answers to the following questions in the textbox below. Label each answer by its part:  A or B. Show all work on your “work” pages.  Label which problem it is (#7).   Questions: Consider this reaction:   2 Ag2O (s)   –>   4 Ag (s)  +  O2 (g)               ΔH = +62.10 kJ A.  Is heat absorbed or released by the system in this reaction?  (no explanation needed) B.  How many kilograms of silver oxide must react for 916 kcal of heat to be transferred in this reaction?