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kkurt [141]
3 years ago
11

Consider the size of an iodine molecule and the size of a starch molecule. Make a prediction about the permeability of the baggi

e. Which molecule do you think will be able to pass through the membrane and where do you expect to see the color change?
Biology
1 answer:
julia-pushkina [17]3 years ago
7 0

Answer:

Consider the size of an iodine molecule and the size of a starch molecule.  Make a prediction about the permeability of the baggie.  Which molecule do you think will be able to pass through the membrane and where do you expect to see the color change?Consider the size of an iodine molecule and the size of a starch molecule.  Make a prediction about the permeability of the baggie.  Which molecule do you think will be able to pass through the membrane and where do you expect to see the color change?Consider the size of an iodine molecule and the size of a starch molecule.  Make a prediction about the permeability of the baggie.  Which molecule do you think will be able to pass through the membrane and where do you expect to see the color change?Consider the size of an iodine molecule and the size of a starch molecule.  Make a prediction about the permeability of the baggie.  Which molecule do you think will be able to pass through the membrane and where do you expect to see the color change?

Explanation:

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Carbon dioxide is heavier than oxygen gas. It therefore displaces the oxygen gas around a flame. Without oxygen, the combustion reaction will stop and the flame will be put out.

Further Explanation:

In order for a combustion reaction to happen, three components must be present: fuel, oxygen, and heat to cause ignition. When one of these three is removed, the combustion reaction will stop.

CO2 fire extinguishers use the difference in mass of the CO2 and oxygen molecules to stop the fire. Since CO2 is heavier, it will displace any oxygen molecules that are around the flame. When this happens, the supply of the oxygen will be limited or cut-off and the fire will eventually be put out because of the lack of oxygen. This ability to displace oxygen is also what makes using CO2 as fire extinguisher quite dangerous for the user since it pushes away the oxygen that is needed for respiration.

Other ways to put out fire include spraying liquids that absorb the heat to avoid spreading the fire further or spraying substances that coat the fuel (flammable materials) to avoid contact with oxygen gas which can lead to further combustion.

Learn More

  1. Learn more about combustion brainly.com/question/9641392
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  3. Learn more about respiration brainly.com/question/1448925

Keywords: carbon dioxide, fire, combustion

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