What changes color when carbon dioxide is introduced?

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What changes color when carbon dioxide is introduced?

2007-10-13 13:23:38 · 3 answers · asked by Anonymous in Science & Mathematics ➔ Chemistry

3 answers

Usually, as a test for carbon dioxide, one uses aqueous calcium hydroxide solution (lime water). It changes to milky white when carbon dioxide is introduced.

2007-10-13 13:31:02 · answer #1 · answered by Anonymous · 0⤊ 0⤋

An indicator will change color when exposed to CO2. The pH will be altered by the CO2 and an indicator will show this change. To find a specific indicator to use you will need to look up the pH range of the different indicators you have on hand.

2007-10-13 13:27:36 · answer #2 · answered by physandchemteach 7 · 0⤊ 0⤋

calcium hydroixde.

2007-10-13 13:28:54 · answer #3 · answered by Dr. Eddie 6 · 0⤊ 0⤋