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Nesterboy [21]
3 years ago
14

Helpppppp!!!!!!!!!!!!!!!

Chemistry
2 answers:
NeX [460]3 years ago
4 0

the answer is A. A power source such as battery

Helen [10]3 years ago
3 0

The answer is:

A.) a power source, such as a battery

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Physical Meaning of pKa Which of the following aqueous solutions has the lowest pH: 0.1 M HCl; 0.1 M acetic acid (pKa = 4.86); 0
ser-zykov [4K]

Answer:

<em>The solution with the lowest pH is 0.1 M HCl.</em>

Explanation:

Since the three solutions have the same concentration (0,1M) it is only necessary to look at the pKa of each solution.

Also, knowing that a higher pKa means a lower Ka, because pKa = -Log (Ka). Thus, a lower Ka means a lower concentration of protons with a higher pH ( pH = -Log [H+].

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Question 10
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False. Sarah has not achieved homeostasis.

<h3>What is homeostasis?</h3>

It is the maintenance of a relatively unchanged internal process in the body of organisms.

Since the resting heart rate for Sarah is 70 bpm, a 100 bpm is a far cry from the normal resting heart rate.

Thus, it cannot be said that Sarah has achieved homeostasis.

More on homeostasis can be found here: brainly.com/question/3888340

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Real quick, I will tell you why i think it does from a scientific point of veiw, but I dont know for sure.

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I hope this helps you!

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