An atom with 17 electrons will fill its first orbital with 2, its second orbital with 8, and the remaining orbital will have 7 electrons, one short of stability. It will tend to pick up an electron, making it a negative anion which will react well with Na+.
Correct Answer: Form an anion
All the listed compounds contain shared electrons.
Correct Answer: All of the choices
Gastric fluids are highly acidic with a pH of 1–2.
Correct Answer: Gastric fluids
Tomatoes are acidic with a pH of 4.5.
Correct Answer: Tomatoes
Pure water has a neutral pH of 7.
Correct Answer: Pure water
Baking soda is alkaline with a pH of 9.
Correct Answer: Baking soda
Soap solutions are alkaline with a pH of 10.5.
Correct Answer: Soap solutions
Amino acids have just two, the amino group and the acid group. Fatty acids have only the acid group, in glucose all 6 -OHs are reactive (including the aldehyde group), and proteins and nucleic acids are polymers with many reactive groups.
Correct Answer: Amino acids
All the molecules other than glucose are lipids found in plasma membranes.
Correct Answer: Glucose
Ribose is not present in DNA. DNA stands for De‐oxyribo‐nucleic acid and each nucleotide contain a deoxyribose sugar, a phosphate, and a nitrogenous base. Cytosine and thymine are two types of nitrogenous base.
Correct Answer: Ribose