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BARSIC [14]
3 years ago
8

5. Base your answer to the following question on the

Chemistry
2 answers:
KatRina [158]3 years ago
7 0
The answer is B) is the correct answer
elixir [45]3 years ago
4 0

Answer:

B) 2Crº + 6e- --> 2Cr3+

Explanation:

The process of oxidation is where electrons are lost. Thus, out of the 2 ions that change charge(Cr and Cu), we must choose the one where the oxidation number increases(which means electrons are lost). Cr goes from an oxidation number of 0 to an oxidation number of 3+, while Cu goes from an oxidation number of 2+ to 0. Thus, we are looking at the half reaction for Cr. Half reactions never have subtracting electrons, so the answer must be B. I am assuming that last plus should be a -->

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1 year ago
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bazaltina [42]

Answer: It’s a bad conductor of electricity

Explanation:

8 0
3 years ago
3. When the hydronium ion concentration of a solution is 1x10-4 M, What
rewona [7]

Answer:

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Given data;

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According to pH scale the pH 7 is neutral while the pH less than 7 is acidic and greater than 7 is basic. The given solution has pH 4 it means solution is acidic.

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