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Greeley [361]
1 year ago
6

Where does o2 and CO2 gas exchange occur?

Chemistry
1 answer:
mixer [17]1 year ago
6 0

The O₂ and the CO₂ gas exchange occurs in alveoli. the oxygen gas moves from the lungs and at same time carbon dioxide passe the the lungs from the blood and the gas exchange occurs.

The oxygen gas moves from the lungs and at same time carbon dioxide passe the the lungs from the blood and gas exchange between the alveoli and the tiny blood vessels occurs. the tiny blood vessels are called as the capillaries. the capillaries are located at the alveoli walls. every person has the hundred of millions of the alveoli present in their lungs.

Thus,  in the alveoli the exchange of the oxygen gas and the carbon dioxide gas will occurs.

To learn more about the alveoli here

brainly.com/question/6748872

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In a science lab, Cash mixes two clear liquids together in a beaker. Bubbles are produced, and a white solid forms and settles t
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Answer:

A chemical change occurred, so even if Cash heats it, the white solid will remain.

Explanation:

  • A physical change occurred, so if Cash heats it, the white solid will dissolve to form the original mixture of clear liquids.
  • A physical change occurred, so even if Cash heats it, the white solid will remain.
  • A chemical change occurred, so if Cash heats it, the white solid will dissolve to form the original mixture of clear liquids.
  • A chemical change occurred, so even if Cash heats it, the white solid will remain.

<em>The correct answer would be that a chemical change occurred, so even if Cash heats it, the white solid will remain.</em>

Chemical changes occur when atoms in a substance or mixture of substances are rearranged, leading to the formation of new substances.

<u>In this case, the mixture of the two clear liquids led to the formation of gas in form of bubbles and a white solid forms that settle at the bottom. The formation of these 2 substances from the mixture of the two clear liquid is an indication of chemical reaction/changes. Hence, even if cash heats the resulting mixture, the white solids will likely remain.</u>

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