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Nostrana [21]
4 years ago
8

Which of the following is most likely an indication of a chemical change

Chemistry
1 answer:
stellarik [79]4 years ago
5 0
Could you write (what the following is), so I can answer your question, 
please?

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During digestion, hydrochloric acid (HCl) lowers the stomach's pH and this causes the enzyme pepsinogen to be converted to its a
Klio2033 [76]

Answer:

Catalysis

Explanation:

Pepsin is able to break peptide bonds, turning large protein molecules into small peptide chains.

When pepsin acts to break down pepsinogen (inactive form of pepsin), it is accelerating pepsinogen → pepsin reactions, acting as a catalyst, reducing activation energy and favoring proteolytic reactions at a higher rate.

This process of accelerating reactions is characteristic of enzymes and is known as catalysis.

7 0
3 years ago
What decision did George make?
Nata [24]

Answer:

(2) never to be so irresponsible again

Explanation: hope this help!

8 0
3 years ago
Read 2 more answers
blast furnaces give off many unpleasant and unhealthy gases. If the total air pressure is .99 ATM the partial pressure of carbon
kolbaska11 [484]

Answer:

P_{air}=1.02atm

Explanation:

Hello!

In this case, since the Dalton's law help us to realize that the total pressure of a gas mixture is computed by adding the partial pressure of each composing gas, for the mixture formed by carbon dioxide, oxygen sulfide (should be hydrogen sulfide instead) and air, we can write:

P=P_{CO_2}+P_{H_2S}+P_{air}

Thus, given the total pressure and the partial pressures of both carbon dioxide and hydrogen sulfide, the partial pressure of the remaining air would be:

P_{air}=P_{T}-P_{H_2S}-P_{CO_2}

Therefore, we plug in to obtain:

P_{air}=0.99atm-0.05atm-0.02atm\\\\P_{air}=1.02atm

Best regards!

6 0
3 years ago
. Guillermo was finding it difficult to walk up the steps to his family’s apartment. His doctor thinks that his cells might not
morpeh [17]

Answer:

Because oxygen is the combustion  fuel and glucose  is the substrate needed for synthesis of energy as ATPs during cellular respiration.Therefore Guillermo lacks enough energy as ATPs in her  body cells, especially skeletal muscles cells to complete the task of ascending the s steps.

For all the mitochondrial in cells(sites of energy production)   to receive needed glucose,and other metabolites needed for  energy synthesis; an efficient transport system is needed, so that  these materials   are available  immediately, in required amount. This system is called circulatory system.

And for the the supply of combustion fuel (oxygen) needed for the completion of the ATP synthesis mechanisms;  respiratory systems which  convey oxygen from the external environments to the circulatory system through breathing mechanisms, for distribution is needed.

Thus the  doctor needs to test both the circulatory and respiratory systems.

Explanation:

4 0
3 years ago
_________ is a chemical process within cells where
geniusboy [140]
I would say the answer is photosynthesis


Hope this helps


-Zayn Malik
5 0
3 years ago
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