Draw the Lewis structure of the phosphate anion (PO43−).  Draw the Lewis structure on a separate piece of paper and upload a photo of your response at the end of the test. Please mark the problem clearly and show your work.

The [ H3O+] of a solution with pH = 5.60 is ________.

Calculate the mass of 5-FU required to make 300 mL of an injectable solution of 5-FU at a concentration of 0.05 M. Work out the problem on a separate piece of paper and upload a photo of your response at the end of the test. Please mark the problem clearly and show your work. Enter the mass in the box below.   ___________ g of 5-FU

Platinum-197 undergoes beta emission. Write out this nuclear reaction showing the resulting product(s).  You may submit your response in the box below using the text editing tools or upload a photo of a written response at the end of the test. Please mark the problem clearly.  

The water solubility of cisplatin is reported as 2.53 g/L. What volume in milliliters of a solution at this concentration would be required to deliver a therapeutic dose of 95.0 mg to an adult male? Work out the problem on a separate piece of paper and upload a photo of your response at the end of the test. Please mark the problem clearly and show your work. Enter the volume in the box below.   ____________ mL 

Which of the following elements has the greatest first ionization energy?

The reported solubility of 5-FU in water is 11.1 mg/mL. Calculate the molarity (M) of a water solution of 5-FU that is 10.0 mg/mL.  Work out the problem on a separate piece of paper and upload a photo of your response at the end of the test. Please mark the problem clearly and show your work. Enter the molarity in the box below.   ___________ M (Canvas likes decimals and not scientific notation.  Please enter your answer as a decimal.

Using the equation below, predict the state of PbSO4 and NaNO3 as aqueous (aq) or precipitated (s). Pb(NO3)2(aq) + Na2SO4(aq) → PbSO4 ____ + 2NaNO3 ____

What is the correct elemental symbol for an ion that has 12 protons and 10 electrons?

If a solid compound has a relatively high melting point, most likely the ________. (Mark all that apply.)