How many atoms are present in a single molecule of C8H10N4O2?
A) 4
B) 8
C) 12
D) 24
Correct Answer:
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Q4: An atom of the element with the
Q5: Electrons are found
A) in the nucleus of
Q8: The following figure shows two hydrogen atoms.
Q9: Radioisotopes are useful in scientific research and
Q10: In the following illustration,a positive ion is
Q11: Which of the following combinations of atoms
Q11: Ionic bonds
A) result from the sharing of
Q17: The outer electron shell of a nitrogen
Q19: A proton has _ charge.
A) no
B) a
Q20: Chemists often represent the structure of atoms
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