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guapka [62]
3 years ago
5

What is the cloud of gases that forms around the nucleus of a comet called?

Chemistry
1 answer:
Bess [88]3 years ago
3 0
The correct answer is A. cloud of gases that forms around the nucleus of a comet is called a coma. The coma is a dusty, fuzzy cloud around the nucleus of a comet. Other parts of a comet are the nucleus and the tail. 
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B. It is a nonliving resource.

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What number of atoms of phosphorus are present in 1.00g of each of the compounds in exercise 40?
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How many grams of sodium sulfide can be produced when 45.3 g Na react with 105 g S?
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The chemical reaction would be as follows:

<span>2Na + S → Na2S

We are given the amount of the reactants to be used in the reaction. We use these to calculate the amount of product. We do as follows:

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1.97 mol Na ( 1 mol Na2S / 2 mol Na ) (78.04 g / mol ) = 76.87 g Na2S produced</span>
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According to Niels Bohr, electrons travel around an atom's nucleus in well-defined orbits.
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