The isotope deuterium has
A) one proton.
B) one proton and one neutron.
C) one proton and two neutrons.
D) one proton and three neutrons.
Correct Answer:
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Q4: Cytosine always undergoes complementary base pairing with
A)adenine.
B)guanine.
C)thymine.
D)uracil.
Q5: The smallest units of matter are
A)molecules.
B)atoms.
C)protons.
D)compounds.
Q6: Starch is an example of a
A)monosaccharide.
B)polysaccharide.
C)peptide.
D)protein.
Q7: Protons are
A)located in the shells.
B)part of the
Q8: Two glucose molecules form
A)galactose.
B)lactose.
C)maltose.
D)fructose.
Q10: The bond between sodium and chlorine atoms
Q11: The bond of oxygen and hydrogen between
Q12: After filling the first shell,the outermost shell
Q13: Glucose and fructose are examples of
A)monosaccharides.
B)disaccharides.
C)polysaccharides.
D)lipids.
Q14: The bond between amino acids is a(n)
A)ionic
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