Which of the following element groups make up 96% of the body's weight?
A) oxygen, carbon, hydrogen, and nitrogen
B) oxygen, carbon, calcium, and sodium
C) oxygen, carbon, hydrogen, and sodium
D) oxygen, nitrogen, potassium, and iron
Correct Answer:
Verified
Q1: Chemistry is the study of _.
A) chemicals
B)
Q2: An element is composed of atoms that:
A)
Q4: Which three subatomic structures comprise an atom?
A)
Q5: Which of the following statements are true?
A)
Q6: What causes an ionic bond?
A) the transfer
Q7: Which of the following atoms always forms
Q8: When two or more atoms bond, they
Q9: Which of the following substances is most
Q10: Which of the following would be considered
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