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AlekseyPX
3 years ago
7

Select the answer that lists the radiation waves in order of increasing

Chemistry
2 answers:
lubasha [3.4K]3 years ago
3 0
D. microwaves, Ultraviolet, x-rays
il63 [147K]3 years ago
3 0
The correct answer is is A. Hope that helped
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In the reaction 2 FeBr3 + 3 Cl2 → 2 FeCl3 + 3 Br2, how many grams of bromine gas are produced from 2.50 moles of FeBr3?
posledela

Answer:

but iron is 2 and 3 by its valance how could it be possible

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3 years ago
Iridium is a component of cosmic dust that rains down upon the earth at a constant rate. Why did Luis Alvarez suggest measuring
weqwewe [10]

Answer:

In order to determine the rate at which the sediment layers were deposited

Explanation:

Iridium is an important element that belongs to the Platinum group and they are dominantly present in the asteroids and comets. They are the key evidence that suggests the occurrence of an asteroidal impact or a mass extinction event that has taken place in the geological past.

The presence of Iridium mixed with the clay sediments in the boundary between the Cretaceous and Tertiary (K-T boundary) suggested the mass extinction event that wiped out numerous life forms from the earth.

The famous scientist Dr. Luis Walter Alvarez suggested measuring the concentration of Iridium in this K-T boundary in order to determine the rate at which these sediment layers were deposited. They were able to determine that these Iridium elements were present due to the asteroid impact on earth, that wiped out the dinosaurs from the earth. They also considered that this element can be produced from the eruptions of volcanoes.

6 0
3 years ago
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Who believed and tested his idea that microorganisms are carried through the air?
kondor19780726 [428]
Louis Pasteur designed a procedure to test whether sterile nutrient broth could spontaneously generate microbial life. To do this, he set up two experiments.

Hope this helps !

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7 0
3 years ago
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A sample of krypton gas in a container of volume 1.90 L exerts a pressure of 0.553 atm at 21 Celsius. How many moles of gas are
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Explanation:

pv = nRT

n= PV/RT

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n=0.0435mol

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3 years ago
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(PLZ ANSWER SOON)
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Answer:

10.5 k.J.

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7 0
3 years ago
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