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3 years ago

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]

Answer: The partial pressure of carbon dioxide at equilibrium is 0.0056 atm

Explanation:

The given chemical equation follows:

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

Initial: 4.00

At eqllm: 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. OR 1.410 cal OC 82,500 cal 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