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Write the shorthand electron configuration (using noble gas core) for the element lead, Pb: Use the T2 function in the tool bar to show superscripts.

Bonus Question worth 3 points. Which of the following is an example of an ionic crystalline solid?

A sample of nitrogen gas occupies 450.0 mL at 751 mm Hg and 

Write the name for HCN(aq) in the blank.

When the Lewis structure is drawn for SCl2, how many valence electrons total are in the structure?

When the Lewis structure is drawn for SeO2, how many valence electrons total are in the structure?

Which statement is TRUE concerning subatomic particles?

Apply the like dissolves like rule and select ALL of the following solids that are soluble in hexane, C6H14. All substances listed exist as solids at room conditions.

A patient has just been endotracheally intubated. The chest x-ray assessing the placement of the endotracheal tube was obtained while the patient’s neck was flexed and shows that the tube’s distal tip is 1 cm below the carina on the right. What should the therapist do at this time?

Perform the operation 3.56 cm x 0.05 cm x 0.77 cm and express to the proper number of significant figures: