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1 year ago

1. To begin, check that this question is shown: The tallest building in the world, the Burj Khalifa

Chemistry

1 answer:

zimovet [89]1 year ago

5 0

Answer:

Explanation:

a. 82,000

b.Metric unit

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Phosphorous would gain or lose electrons?

devlian [24]

Answer: the valence electron for phosphorus is 5. To achieve an octet electron arrangement, it needs to lose 5 electrons or gain 3 electrons. It is easier to gain 3 electrons than to lose 5 electrons. So phosphorus has to gain 3 electrons.

Explanation:

Hope it helps sorry if it doesn't

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3 years ago

At 1000 K, Kp=19.9 for the reaction Fe2O3(s)+3CO(g)<--->2Fe(s)+3CO2(g) What are the equilibrium partial pressures of CO an

SOVA2 [1]

Answer: The equilibrium concentration of CO is 0.243 atm

Explanation:

We are given:

Initial partial pressure of carbon dioxide = 0.902 atm

As, carbon dioxide is present initially. This means that the reaction is proceeding backwards.

For the given chemical equation:

$Fe_2O_3(s)+3CO(g)\rightleftharpoons 2Fe(s)+3CO_2(g)$

Initial: 0.902

At eqllm: 3x (0.902-3x)

The expression of $K_p$ for above equation follows:

$K_p=\frac{(p_{CO_2})^3}{(p_{CO})^3}$

We are given:

$K_p=19.9$

Putting values in above equation, we get:

$19.9=\frac{(0.902-3x)^3}{(3x)^3}\\\\x=0.0810$

So, equilibrium concentration of CO = 3x = (3 × 0.0810) = 0.243atm[/tex]

Hence, the equilibrium concentration of CO is 0.243 atm

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3 years ago

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What type of bonds are these?

gulaghasi [49]

Jeez this is middle school really. covalently bond

3 0

3 years ago

Plzzzzzzzzzzz helpo friend

miv72 [106K]

Answer:

They form volcanoes....

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3 years ago

PLEASE ANSWER I HAVE 15 MINS. Which best compares the gravitational force and the strong force?

vladimir1956 [14]

I think it would be B hope not too late

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3 years ago