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STatiana [176]
3 years ago
14

During oxidation, which of the following is true? A. Electrons are gained, so the oxidation number increases. B. Electrons are g

ained, so the oxidation number decreases. C. Electrons are given off, so the oxidation number increases. D. Electrons are given off, so the oxidation number decreases.
Chemistry
2 answers:
Anna11 [10]3 years ago
7 0

C) Electrons are given off, so the oxidation number increases.

I know because I took the test in Time4Learning and got a 100. :)

EastWind [94]3 years ago
6 0

Oxidation is when the overall charge (or oxidation number) increases.  The only way to increase an oxidation number is to lose an electron, thereby making the negative charges less.  The correct answer is C.

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There are different types of elements which are represented by symbols gotten from the first letter or the first and any other letter in the name of the element.

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When two or more of these elements combine together through a chemical bond, it leads to the formation of compounds.

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Automotive air bags inflate when sodium azide, NaN3, decomposes explosively to its constituent elements. How many moles of nitro
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Answer:

2.29 g of N2

Explanation:

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NaN_3~->~Na~+~N_2

The next step is to <u>balance the reaction</u>:

2NaN_3~->~2Na~+~3N_2

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NaN_3 (65 g/mol), so:

3.55~g~NaN_3\frac{1~mol~NaN_3}{65~g~NaN_3}=0.054~mol~NaN_3

Now, with the<u> molar ratio</u> between NaN_3  and N_2  we can <u>calculate the moles</u> of N_2  (2:3), so:

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3 years ago
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When you transferred the hot metal from the boiling water and into the calorimeter,  The effect will be

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<h3>What is the Specific heat of the metal?</h3>

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Answerit is a

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