Which One of the Following Represents a Chemical Change

question 129

Multiple Choice

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.

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