The three most abundant elements in a human skin cell are
A) calcium, carbon, and oxygen.
B) carbon, hydrogen, and oxygen.
C) carbon, hydrogen, and sodium.
D) carbon, nitrogen, and potassium.
E) nitrogen, hydrogen, and argon.
Correct Answer:
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Q3: Hydrophobic interactions
A) are stronger than hydrogen bonds.
B)
Q4: The best reference source for the atomic
Q5: An atom that is neutrally charged contains
A)
Q6: The part of the atom that determines
Q7: The hydrogen bond between two water molecules
Q9: A human hair is found to have
Q10: Which of the following statements about atoms
Q11: The atomic weight (atomic mass) of an
Q13: Which of the following statements about water
Q14: Which component of an atom does not
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