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3 years ago

On an artificial reef in the Mediterranean Sea, the rocky bottom, the Dover sole, and the

1 answer:

7 0

Taking into account the animals and the landscape being mentioned, we can confirm that the combination of these forms part of an ecosystem.

An ecosystem is described as an area consisting of:

Plants
Animals
Bacteria
Weather
Landscape

and many other factors, which all work together to form a small pocket of life.

Ecosystems are described as containing both living and non-living elements, meaning biotic and non-biotic parts. A community or population, on the other hand, are used to consider only the biotic or living factors of an ecosystem. Therefore, since the question includes the rock bottom (a non-biotic factor) as a part of the makeup, the only correct grouping is that of an ecosystem.

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Why do you move the .0100 - x to the left side of the equal sign?

dlinn [17]

Because negatives are on the left and positives are on the right , if it was .0100 +x it would move to the right since +x implies that the x is positive.

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3 years ago

After substantial heating, 6.25 g of iron produced 18.00 g of a compound with chlorine. The empirical formula is:

babunello [35]

Answer:

Option A. FeCl3

Explanation:

The following data were obtained from the question:

Mass of iron (Fe) = 6.25g

Mass of the compound formed = 18g

From the question, we were told that the compound formed contains chlorine. Therefore the mass of chlorine is obtained as follow

Mass of chlorine (Cl) = Mass of compound formed – Mass of iron.

Mass of chlorine (Cl) = 18 – 6.25

Mass of chlorine (Cl) = 11.75g

The compound therefore contains:

Iron (Fe) = 6.25g

Chlorine (Cl) = 11.75g

The empirical formula for the compound can be obtained by doing the following:

Step 1:

Divide by their molar mass

Fe = 6.25/56 = 0.112

Cl = 11.75/35.5 = 0.331

Step 2:

Divide by the smallest

Fe = 0.112/0.112 = 1

Cl = 0.331/0.112 = 3

The empirical formula for the compound is FeCl3

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3 years ago

HELPPP PLS

photoshop1234 [79]

I think it could be C maybeee though

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3 years ago

"Conservation of energy" refers to the fact that _____.

Agata [3.3K]

Answer: Option (b) is the correct answer.

Explanation:

According to the law of conservation of energy, it is known that energy can neither be created nor it can be destroyed.

But energy can be changed from one form to another.

Whereas entropy is the degree of randomness present within the molecules of a substance or object.

For example, gas molecules are able to move rapidly so, they have more entropy as compared to solid and liquid substances.

According to second law of thermodynamics, entropy of the system is always increasing.

Thus, we can conclude that "Conservation of energy" refers to the fact that energy cannot be created or destroyed but can be converted from one form to another.

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3 years ago

A bowling ball is let go from a height of 30 cm. What is the velocity of the

marishachu [46]

Answer:

The answer is 0.30 m/s

Explanation:

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3 years ago