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JudyYou would exhale into a straw placed in a container of lime water. If there is carbon dioxide in your breath, the lime water will turn cloudy or milky due to the formation of calcium carbonate precipitate. This reaction indicates the presence of carbon dioxide in your exhaled breath.
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What gas is present in exhaled?
carbon dioxide
What in the breath you exhaled into the beaker caused the solution to become acidic and go from pink to clear?
The carbon dioxide in your exhaled breath reacts with water in the solution to form carbonic acid. This acidification of the solution causes the pink color of the indicator to change to clear because the pH decreases.
Which of the what is are removed by expiration Carbon dioxide vapor Oxygen Carbon dioxide and water vapor?
During expiration, carbon dioxide is removed from the body while oxygen is still present in the exhaled air. Water vapor is also expelled during expiration.
What chemicals are present in the exhaled air of humans?
Exhaled air from humans contains mainly nitrogen, oxygen, carbon dioxide, and water vapor. Other trace gases found in exhaled air include methane, hydrogen, acetone, and various volatile organic compounds. Factors such as diet, metabolism, and health status can influence the composition of exhaled breath.
Which gas does the exhaled air contain?
Exhaled air will contain all of the gases in regular air, except that it will have higher percentages of carbon dioxide and lower percentages of oxygen. (It still will have oxygen, or CPR wouldn't work.) It will also have water vapor from our lungs. The main gas in inhaled and exhaled air is nitrogen. This is followed by oxygen, then carbon dioxide, then other gases. Yes, there is still more oxygen exhaled than carbon dioxide, but at a smaller percentage than was inhaled. Chances are that your teacher is looking for the gas, carbon dioxide, as your answer, since that is the product of cellular respiration that is disposed of in exhaled air, but it isn't the main component of exhaled air.
