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blsea [12.9K]
3 years ago
15

1. The underlined portion of the chemical formula above is the _____ and it represents ____________________.

Chemistry
2 answers:
Mnenie [13.5K]3 years ago
3 0

1.Subscript,how many hydrogen molecules there are

2.No it is not balanced,oxygen is less than represented.

Allushta [10]3 years ago
3 0

1. The correct answer is B. Subscript; how many hydrogen molecules which are there  in that one molecule.

Chemical formula above is a superscript and it represents hydrogen molecules in one molecule.

2. The correct answer is C. No, the equation is not balanced. In the equation the oxygen it has less atoms which represents the products.

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Answer:

hope it helps.

Explanation:

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2 years ago
What is the value for the reaction: N2(g) + 2 O2(g) --> N2O4(g) in terms of K values from the reactions:
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Answer : The correct expression will be:

K=(K_1)^2\times K_2

Explanation :

The chemical reactions are :

(1) \frac{1}{2}N_2(g)+\frac{1}{2}O_2(g)\rightleftharpoons NO(g) K_1

(2) 2NO(g)+O_2(g)\rightleftharpoons N_2O_4(g) K_2

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N_2(g)+2O_2(g)\rightleftharpoons N_2O_4 K=?

Now we have to calculate the value of K for the final reaction.

Now equation 1 is multiply by 2 and then add both the reaction we get the value of 'K'.

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If the two equations are added then equilibrium constant will be multiplied.

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K=(K_1)^2\times K_2

6 0
3 years ago
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Answer:

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