Problem Solving

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A student was given two substances which she put into dilute (1M) hydrochloric acid. The substances bubbled. The student decided to test the gases to find out what they were. Here is a table of her results. Substance Limewater Test Pop Test A Show reaction Show reaction B Show reaction Show reaction The gas released when substance A reacts with acid is most likely Carbon dioxide Hydrogen Substance A could be Magnesium Marble The gas released when substance B reacts with acid is most likely Carbon dioxide Hydrogen Substance B could be magnesium limestone To find out if you are correct, fill in your name and email address. Pages by Sally Mack 1998-2001