The Lewis structures for acetic acid and formic acid are shown below (nonbonding electrons are omitted for clarity). Acetic acid is found in vinegar and formic acid is in bee stings! Which of these two is the stronger acid? Use the provided pKa values to make your decision. Acetic acid, pKa 4.8 Formic acid, pKa 3.8    

Which of the following aqueous (water) environments is basic? A. Dasani brand of bottled water, pH 5.6 B. Seawater, pH 7.9 C. Essentia brand of bottled water, pH 9.4 D. Industrial discharge stream, pH 4.9 E. Sparkling water, pH 5.2 F. Himalayan stream, pH 8.1

When performing a skin assessment on a patient, the nurse notices an asymmetrical, poorly-defined nevus with uneven coloring on the patient’s back. What is the most appropriate action for the nurse to take next?    

Of the elements: Li, Na, K, Rb, and Cs, the element with the most metallic character is

What elements are in hydroxyapatite, Ca5 (PO4)3OH, a major compound in human bones and teeth?

In an electron-dot structure of an element, the dots are used to represent

Which of the following gives the correct numbers of protons, neutrons, and electrons, respectively, in a neutral atom of Sn?

Select the correct symbol for the element. mercury

Which of the following properties is NOT a characteristic of the Group 1A (1) elements (alkali metals)?

Which of the answers for the following calculations contains the correct number of significant figures?