A salt bridge between half-reactions maintains the electrical balance of a galvanic cell. This bridge is filled with:  

Single use, non-rechargeable batteries are referred to as secondary cells.

Calculate the cell potential (E0) for a galvanic cell formed from the following two half-reactions?   Ni2+(aq) + 2 e− Ni(s) E0 = −0.25 V   Mn2+(aq) + 2 e− Mn(s) E0 = −1.18 V  

The cathode is represented as being the substance that:   

Which of the following species undergoes reduction in the formation of iron (III) oxide?4Fe(s) + 3O2 (g) → 2Fe+3 + 3O2-(aq)  

The species undergoing oxidation is referred to as an reducing agent.

If a 5.0 L flask holds 0.125 moles of nitrogen at STP, what happens to the entropy of the system upon cooling the gas to -75 °C?  

According to the second law of thermodynamics, the entropy of the universe must ____ for a spontaneous process.

Please make sure ALL electronics are turned off and placed away from your testing area. You may access the attached Formula Package PDF located at the top of your screen throughout the entirety of your exam. You cannot use your notes, or printed formula package. Make sure you have something to write with and white scratch paper and show it to your camera once you are finished with your exam. I will request you to submit any workout from the exam to ensure you are getting properly graded.

Read the following sentence from an article by Ciccarelli and White published in 2009, then choose which phrase best paraphrases the content: “In psychology, an understanding of the methods psychologists use is important because research can be flawed and knowing how research should be done can bring those flaws to light” (Ciccarelli & White, 2009, p. 3).