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adell [148]
4 years ago
7

Which phrase defines an aquifer? A. the total amount of precipitation that falls on an area in a year B. the network of streams

and rivers that flow into a large river C. a lake or a pond that is used to store water D. an underground geological formation that contains a large amount of water
Chemistry
2 answers:
Aleks04 [339]4 years ago
8 0
An aquifer is D. an underground geological formation that contains a large amount of water.
Andrew [12]4 years ago
8 0
D. an underground geological formation that contains a large amount of water
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<u>Answer: </u>The correct answer is Option b.

<u>Explanation:</u>

Oxidizing agent is defined as the chemical reagent which helps the other chemical compound to get oxidized and itself gets reduced. The oxidation state for these species gets reduced because they are undergoing reduction reaction.

For the given chemical equation:

K_2Cr_2O_7+14HCl\rightarrow 2CrCl_3+2KCl+3Cl_2+7H_2O

Oxidation state of Chromium is getting reduced from +6 to +3 and oxidation state of chlorine getting increased from -1 to 0.

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Therefore, the correct answer is Option b.

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