Identify the Compound That Contains Two Oxygens

Q247: Keratin is found in<br>A)cells.<br>B)bird feathers.<br>C)muscles.<br>D)DNA.

Q248: How many possible tripeptides can be made

Q249: None of the listed compounds contains a

Q250: The cycloalkane represented by a heptagon is

Q251: Which compound is a ketone?<br>A)butanal<br>B)propanoic acid<br>C)2-butanone<br>D)butane

Q253: Based on the structure of its side

Q254: The amide bonds that form when two

Q255: Which of the following molecules is the

Q256: To which family does this organic compound

Q257: To which family does this organic compound