Which one of the following represents a chemical change?
A) Mercury(II) oxide is heated up and forms mercury metal and oxygen gas.
B) Rubbing alcohol evaporates.
C) Iodine vapor deposits on a surface.
D) Iron metal is separated from sand using a magnet.
E) Rock salt is pulverized.
Correct Answer:
Verified
Q31: Which of the following can be separated
Q32: Which represents an extensive property of hydrogen?
A)Hydrogen
Q33: Which statement is true regarding ammonia, NH3?
A)It
Q34: Which of the following is an intensive
Q35: If you had equal masses of each
Q37: Which of the following is a chemical
Q38: Which one of the following is NOT
Q39: Which of the following is a
Q40: Which of the following represents a
Q41: Equal amounts of a pure substance
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