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CONGRATULATIONS… You finished the Exam and our Course!!   Before submitting your Exam, please make sure you:  Rip up your scrap paper, Periodic Table & Ion Chart in front of the WebCam.  Submit your Exam.   It has been a pleasure having you in class and I wish you the best as you continue your studies!  Enjoy the holidays–stay safe and healthy!! Hope to have you in class again!!

Balance the following chemical equation: Al + O2 —-> Al2O3

How many valence electrons does cesium (Cs) have?

EXTRA CREDIT from Revell eText:   (1)  Briefly explain how a treatment for bipolar disorder was discovered? (2)  What is an aspect of what medicinal chemists do as part of their job? (3)  What was the starting material for the beautiful white plaster finish the Mayans used to make the buildings? (4) Why did the Mayans clear huge areas of the Yucatan Jungle that ultimately led to widespread drought and is possibly a reason for the decline in Mayan population? (5)  What do process chemists do? (6)  What was one of the two problems Eli Lilly chemists faced in producing a promising new medicine?

What type of chemical reaction does the following unbalanced chemical equation represent? Al + HCl —-> AlCl3 + H2  

Which of the following statements about how and why neutral atoms form ions is FALSE?

nitrogen dioxide

If you have 0.25 moles of nitroglycerin (C3H5N3O9), how many molecules would this be? Report answer to correct number of significant figures.

Which of the following statements about bonding is/are TRUE? Check ALL that apply.

NaH2PO4