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labwork [276]
3 years ago
10

Question 6 (4 points)

Chemistry
2 answers:
pishuonlain [190]3 years ago
8 0

Answer:

20.9%

Explanation:

I took the test i hope this helps:)

Afina-wow [57]3 years ago
5 0

Answer:

B, "20.9%"

Explanation:

I also took the test.

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As a teacher, Kenneth must prepare for his classes and teach his students.
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Answer:

I believe the answer is B but if I am wrong then I am very sorry

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2. Which of the following is not a physical property of water? It is a colorless liquid. It is composed of hydrogen and oxygen.
S_A_V [24]

The correct answer is C. Sugar dissolves in it

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1 Which type of front is least likely to be associated with rainfall?
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4 years ago
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The first step in HNO3 production is the catalyzed oxidation of NH3. Without a catalyst, a different reaction predominates:
alexira [117]

Answer:

Kc = 6x10⁻⁶

Explanation:

For the reaction:

4NH₃(g) + 3O₂(g) ⇄ 2N₂(g) + 6H₂O(g)

Kc is defined as:

Kc =[N₂]² [H₂O]⁶ / [NH₃]⁴ [O₂]³

The equilibrium concentrations of the gases is -Because volume of the container is 1.00L-:

[N₂] = 2X = 1.96x10⁻³; <em>X = 9.8x10⁻⁴</em>

[H₂O] = 6X; 6ₓ9.8x10⁻⁴ = 5.88x10⁻³

[NH₃] = 0.0150M - 4X = 0.01108M

[O₂] = 0.0150M - 3X = 0.01206M

Replacing in Kc expression:

Kc =[1.96x10⁻³]² [5.88x10⁻³]⁶ / [0.01108M]⁴ [0.01206M]³

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4 years ago
What is acid precipitation?
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precipitation like snow rain with increased acid is know as acid precipitation

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