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kumpel [21]
3 years ago
8

Which of the following statements is true? A. Some plants are considered abiotic components of an ecosystem. B. Animals are alwa

ys biotic components of an ecosystem. C. Temperature range is always a biotic component of an ecosystem. D. In many ecosystems, water is considered a biotic component of the ecosystem.
Chemistry
2 answers:
icang [17]3 years ago
8 0
The answer is...
<span>B. Animals are always biotic components of an ecosystem. 

Explanation...
</span>The living components<span> of the environment are known as </span>biotic factors<span>. </span>Biotic factors<span> include plants, </span>animals<span>, and micro-organisms.</span>
Alexeev081 [22]3 years ago
7 0

Answer: Animals are always biotic components of an ecosystem.

Explanation:

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A gas has a volume of 3L at 200 kPa. What will its volume be if the pressure is changed to 500 kPa?
marta [7]

Answer:

6L

Explanation:

<em>if it's 3L per 200kPa</em>

then it would be;

4L per 300kPa

5L per 400kPa

6L per 500kPa

that's how i'd work it out in my head, hope it helps, but not sure though!

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Which of the following is a radioactive element?Sodium, Fluorine,Oxygen <br> francium
Maksim231197 [3]

Answer:

Fluorine

Explanation:

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4 0
3 years ago
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Umnica [9.8K]

Answer:

All of the above processes have a ΔS < 0.

Explanation:

ΔS represents change in entropy of a system. Entropy refers to the degree of disorderliness of a system.

The question requests us to identify the process that has a negative change of entropy.

carbon dioxide(g) → carbon dioxide(s)

There is  a change in state from gas to solid. Solid particles are more ordered than gas particles so this is a negative change in entropy.

water freezes

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propanol (g, at 555 K) → propanol (g, at 400 K)

Temperature is directly proportional to entropy, this means higher temperature leads t higher entropy.

This reaction highlights a drop in temperature which means a negative change in entropy.

methyl alcohol condenses

Condensation is the change in state from gas to liquid. Liquid particles are more ordered than gas particles so this is a negative change in entropy.

6 0
3 years ago
What evidence supports Bohr’s claim that an electron is found only in specific energy levels around the nucleus of the atom. And
Lorico [155]

Energy Levels of Electrons. As you may remember from chemistry, an atom consists of electrons orbiting around a nucleus. ... They are restricted to orbits with only certain energies. Electrons can jump from one energy level to another, but they can never have orbits with energies other than the allowed energy levels.

4 0
3 years ago
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Ice reflecting sunlight has a _____ effect on climate.<br><br> a. cooling<br> b. warming
Dafna1 [17]

Answer:

warming

Explanation:

3 0
2 years ago
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