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3 years ago

Which of the following statements sounds correct to you?

Chemistry

1 answer:

ololo11 [35]3 years ago

6 0

A is correct vegetables cannot be like acids or alkaline because they foods

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Why is water important?

expeople1 [14]

Answer:

Its a natural resource used around the world

4 0

3 years ago

Ammonia will decompose into nitrogen and hydrogen at high temperature. An industrial chemist studying this reaction fills a 500.

patriot [66]

Explanation:

Chemical reaction equation for the give decomposition of $NH_{3}$ is as follows:.

$2NH_{3}(g) \rightleftharpoons N_{2}(g) + 3H_{2}(g)$

And, initially only $NH_{3}$ is present.

The given data is as follows.

$P_{NH_{3}}$ = 2.3 atm at equilibrium

$P_{H_{2}} = 3 \times P_{N_{2}}$ = 0.69 atm

Therefore,

$P_{N_{2}} = \frac{0.69 atm}{3}$

= 0.23 aatm

So, $P_{NH_{3}}$ = 2.3 - 2(0.23)

= 1.84 atm

Now, expression for $K_{p}$ will be as follows.

$K_{p} = \frac{(P_{N_{2}})(P^{3}_{H_{2}})}{(P^{2}_{NH_{3}})}$

$K_{p} = \frac{(0.23) \times (0.69)^{3}}{(1.84)^{2}}$

= $\frac{0.23 \times 0.33}{3.39}$

= 0.0224

or, $K_{p} = 2.2 \times 10^{-2}$

Thus, we can conclude that the pressure equilibrium constant for the decomposition of ammonia at the final temperature of the mixture is $2.2 \times 10^{-2}$ .

6 0

4 years ago

HELP QUICK ILL MARK BRAINLIEST

lbvjy [14]

Answer:

D) The water will freeze into cubes again.

Explanation:

When the ice cubes is left on a counter, it will melt as the forces that make its molecules stick together is broken.

If that tray is put back in the freezer again, the water will freeze into cubes again.

When water freezes, the molecules slow down and settle into its place, arranging in a regular shape that can be appeared as crystals (ice cubes).

3 0

4 years ago

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José and Laurel measured the length of a stick's shadow during the day. Without knowing the length of the stick, which of their

vladimir1956 [14]

Answer:

I think in the middle of the day because the sun isn't going down yet

Explanation:

6 0

3 years ago

How can you tell the difference between an element and a compound

castortr0y [4]

Explanation:

An Element is one and a compound is more than 2elements

7 0

3 years ago

Read 2 more answers