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3 years ago

When more organisms move into an ecosystem and use more resources, the result is

Chemistry

2 answers:

Oxana [17]3 years ago

8 0

The answer would be, "A", "Overpopulation".

Aneli [31]3 years ago

3 0

A) overpopulation :)

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The decomposition of N2O4 into NO2 has Kp = 2. Some N2O4 is placed into an empty container, and the partial pressure of NO2 at e

Sunny_sXe [5.5K]

Answer: Option (B) is the correct answer.

Explanation:

Expression for the given decomposition reaction is as follows.

$N_{2}O_{4} \rightarrow 2NO_{2}$

Let us assume that x concentration of $N_{2}O_{4}$ is present at the initial stage. Therefore, according to the ICE table,

$N_{2}O_{4} \rightarrow 2NO_{2}$

Initial : x 0

Change : - 0.1 $2 \times 0.1$

Equilibrium : (x - 0.1) 0.2

Now, expression for $K_{p}$ of this reaction is as follows.

$K_{p} = \frac{P^{2}_{NO_{2}}}{P_{N_{2}O_{4}}}$

Putting the given values into the above formula as follows.

$K_{p} = \frac{P^{2}_{NO_{2}}}{P_{N_{2}O_{4}}}$

$2 = \frac{(0.2)^{2}}{(x - 0.1)}$

$2 \times (x - 0.1) = (0.2)^{2}$

x = 0.12

This means that $P_{N_{2}O_{4}}$ = x = 0.12 atm.

Thus, we can conclude that the initial pressure in the container prior to decomposition is 0.12 atm.

6 0

3 years ago

Rubbing alcohol is less polar than water. Both are liquids at room temperature which One boils first? why?

Sergeeva-Olga [200]

Answer:

because both liquid are made from different substances.

Explanation:

8 0

3 years ago

Describe one major change that occured in the modern atomic model

aleksley [76]

the modern atomic model shows that electrons are located in a predicted area but cannot be identified in a specific point

Hope this helps :)

7 0

3 years ago

Explain how you would separate a mixture of water sand salt and iron fillings into its four component parts

Alborosie

Use a sieve to separate the water from the iron fillings and sand.
Use a magnet to separate the iron from the sand.

8 0

2 years ago

What is a large oval structure that directs all of the cells activities ?

mestny [16]

The structure is known as the nucleus

7 0

3 years ago