Which of the following is a pure substance?
A) seawater
B) blood
C) brass (an alloy of copper and zinc)
D) table sugar(sucrose, C12H22O11) .
E) beer
Correct Answer:
Verified
Q11: Which of the following statements is NOT
Q12: Which of the following illustrates the law
Q13: Which of the following is NOT a
Q14: Which one of the following is a
Q15: Which of the following is an element?
A)C6H12O6
B)HNO3
C)NaCl
D)CH4
E)O3
Q17: Which of the following statements is NOT
Q18: Which of the following is a heterogeneous
Q19: Which step is NOT a part of
Q20: A sample of a compound _
A)breaks into
Q21: Which of the following is a
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