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Juliette [100K]
3 years ago
12

Ozone depletion in the atmosphere has been caused by

Biology
1 answer:
pshichka [43]3 years ago
8 0
I think its Answer "B" CFCs. hope this helps!
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A student is preparing a solution of 0.1 M Tris-Cl (pH 7.0) with 200 mM NaCl. To adjust the pH, the student started with concent
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Answer:

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Explanation:

As the pH is finally maintained at 7 the pH for the buffer solution will be accurate but excess salt will be produced due to use of Both NaOH and HCl to make up the to 7.

As more volume of water is required at final step to make up the volume the concentration of tris will be incorrect.

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HELP! QUICK!
Readme [11.4K]

Answer:

b

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If they didn't adapt, they couldn't survive in the changed environment.
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