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Novosadov [1.4K]
3 years ago
13

Which pH value would a very acidic solution have? a. 0 b. 6 c. 9 d. 14

Chemistry
2 answers:
Artist 52 [7]3 years ago
6 0
The answer is A. 0 because 9 and 14 would be a pH of basic solutions because they are greater than 7; 0 and 6 are acidic because they are less than 7 but zero is smaller than 6 so it is the most acidic
saul85 [17]3 years ago
6 0
The answer is 0. The pH scale ranges from 0 to 14. 0-6 being very acidic. 7 being neutral and 8-14 being very basic.
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Zielflug [23.3K]

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<u>Explanation:</u>

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3 years ago
2NO + 3MnO2 + 4H â 2NO3- + 3Mn2 + 2H2O For the above redox reaction, assign oxidation numbers and use them to identify the eleme
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Manganese decreases from 4+ to 2+ (reduced and oxidizing agent) and nitrogen increases from 2+ to 5+ (oxidized and reducing agent).

Explanation:

Hello there!

In this case, according to the given redox reaction, we rewrite it as a convenient first step:

2NO + 3MnO_2 + 4H^+ \rightarrow 2NO_3^- + 3Mn^{2+} + 2H_2O

Next, we assign the oxidation numbers as follows:

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Thus, we can see that both manganese and nitrogen undergo a change in their oxidation number, the former decreases from 4+ to 2+ (reduced and oxidizing agent) and the latter increases from 2+ to 5+ (oxidized and reducing agent).

Regards!

4 0
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