All of the following are elements except
A) Water
B) oxygen
C) nitrogen
D) hydrogen
E) Carbon
Correct Answer:
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Q4: Which of the following choices best describes
Q4: Protons,neutrons,and electrons are all _.
A) forms of
Q5: When scientists are testing ideas to determine
Q6: The atomic number is the number of
A)atoms
Q8: Isotopes differ from each other by their
Q10: The Bormann-Likens controlled experiment in forest valleys
Q13: An element
A) is identical to a compound
B)
Q14: As they searched for previously unknown populations
Q17: A tiny, tawny colored butterfly called the
Q19: Which of the following does not characterize
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