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Chemistry

1 answer:

dusya [7]3 years ago

4 0

Answer:

Hey

The star is oving closser

First, we see that the spectrum is shifted tworards blue thereby we see the doppler effect.

Second heating a star does not increase the frequincy of light, it only makes more light.

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The mass of one mole of any substance is equal to the _____.

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Atomic mass in grams

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According to the law of multiple proportions, if 12 g of carbon combine with 16 g of oxygen to form co, the number of grams of c

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The amount of carbon combined with oxygen in order to form Carbon Dioxide(CO₂) is 12 grams

The Law of Multiple proportions is one of the basic laws in chemistry along with the Law of Definite proportion. This law was proposed by John Dalton in 1803. The law states that if two elements react to form one or more compounds then the ratio of masses of both the elements is in the ratio of small whole numbers.

It is known that Carbon can form two different compounds while reacting with Oxygen that is: Carbon Monoxide, Carbon Dioxide. For Carbon Monoxide, 12g of Carbon needs to react with 16g of Oxygen. Whereas, In Carbon Dioxide, 12g of Carbon needs to react with 32g of Oxygen. So the mass of Carbon is equal in both cases is 12g.

C(12g) + O(16g) ⇒ CO (Carbon Monoxide)

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2 years ago

What is the molar mass of the anhydrous compound? Answer using four significant figures.

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Answer:

120.15

Explanation: