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prohojiy [21]
3 years ago
14

Explain briefly why oxygen exists as diatonic molecules?

Chemistry
1 answer:
eimsori [14]3 years ago
6 0

Answer:

Explanation:

Oxygen generally exists as a diatomic molecule in the atmosphere when it is not combined with any other element. It forms the molecule O2 because in that configuration, it has its lowest energy level when uncombined.

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Given that Kp = 3.5 x 10-4 for the reaction 2 CO(g) <=> C(graphite) + CO2(g), what is the partial pressure of CO2(g) at eq
spin [16.1K]

<u>Answer:</u> The partial pressure of carbon dioxide at equilibrium is 0.0056 atm

<u>Explanation:</u>

The given chemical equation follows:

                     2CO(g)\rightleftharpoons C\text{ (graphite)}+CO_2(g)

<u>Initial:</u>             4.00

<u>At eqllm:</u>       4.00-2x        x                 x

The expression of K_p for above reaction follows:

K_p=\frac{p_{CO_2}}{(p_{CO})^2}

The partial pressure of pure solids and liquids are taken as 1 in the equilibrium constant expression.

We are given:

K_p=3.5\times 10^{-4}

Putting values in above expression, we get:

3.5\times 10^{-4}=\frac{x}{(4-2x)^2}\\\\x=0.0056,718.28

Neglecting the value of x = 718.28 because equilibrium pressure cannot be greater than initial pressure

Partial pressure of CO_2 = 0.0056 atm

Hence, the partial pressure of carbon dioxide at equilibrium is 0.0056 atm

4 0
3 years ago
Is the periodic table organized by ions and what does form the same kinds of ions mean?
Elina [12.6K]
The periodic table is organized by the atomic mass of the elements. It means if the element is in Group 2a in the periodic table, it has 2+ ions.
4 0
3 years ago
Which of the following would be a value measured using a scale in lab?
Neko [114]

Answer:

A. Actual Yield

Since all of the others are calculated not measured outright.

4 0
3 years ago
Convert 35 joules into calories.<br> OR 1.410 cal<br> OC 82,500 cal<br> OD. 1.420,000 cal
lesya692 [45]

Answer:

0.83Cal

Explanation:

Given parameters:

   Amount of energy given;

      35J;

 Convert to Cal;

         1 calorie  = 42 joules

         x calories  = 35 joules

   Cross multiply;

         42x = 35

             x = \frac{35}{42}   = 0.83Cal

7 0
3 years ago
Which of the following is NOT a physical property?
ICE Princess25 [194]

Answer:

reactivity is NOT a physical property

5 0
3 years ago
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