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MArishka [77]
3 years ago
8

Which best defines a pioneer species?

Chemistry
2 answers:
algol133 years ago
5 0

Answer:

The third one is the correct answer

Explanation:

velikii [3]3 years ago
4 0

Answer:

It would have to be C: the first species to populate an uninhabited area

Explanation:

The meaning of Pioneer species is: the first species to populate an uninhabited area

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What is 6.9 x 10^-3 in standard form?
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Answer:

0.0069

Explanation:

When converting between scientific notation try to remember that moving the decimal place to the left is positve and to the right is negative

Since you are changing from scientific to standard you will need to move to the left from the decimal point, making your answer 0.0069

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3 years ago
While estimating the Caloric content of the chemical constituents present in the food item, the carbohydrate amount is discounte
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Fiber is "Not Digestible"

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Carbohydrates that contain fiber cannot be completely digested. the indigestible components of fiber are measured in the calorimeter, but they are not accessible for energy in the human body.

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Which of the following statements is true about covalent bonds?
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the answer is D.)

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How much energy is required to evaporate grams of water?.
gregori [183]

Answer:

energy known as the latent heat of vaporization is required to break the hydrogen bonds. At 100 °C, 540 calories per gram of water are needed to convert one gram of liquid water to one gram of water vapour under normal pressure.

Explanation:energy known as the latent heat of vaporization is required to break the hydrogen bonds. At 100 °C, 540 calories per gram of water are needed to convert one gram of liquid water to one gram of water vapour under normal pressure.

5 0
2 years ago
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How was nitrogen discovered
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In 1770 a Scottish physician and Chemist Daniel Rutherford performed a simple experiment with which he discovered nitrogen. Rutherford being with an empty bottle that he turned upside down in a pan of water so that the air was trapped. A buring candle was placed inside the bottle with the trapped air causing the water to rise a bit. The part of the air that seemed to "disappear" when the candle was bured was oxygen gas and the part of the air that did not "disappear" Ruthford discovered Nitrogen.
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4 years ago
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