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Elena-2011 [213]
3 years ago
13

What is a hot spot? Must be in your own words ( please hurry)

Chemistry
2 answers:
kenny6666 [7]3 years ago
7 0

Answer:

It depends. what hot spot are you looking for?

vodka [1.7K]3 years ago
4 0

Answer:

A hot spot is an area on Earth over a mantle plume or an area under the rocky outer layer of Earth, called the crust, where magma is hotter than surrounding magma. The magma plume causes melting and thinning of the rocky crust and widespread volcanic activity.

Explanation:

Hope this is what you mean be hot spot!

I hope this helps you!  

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How many atoms of HCl are needed to produce 0.62 moles of hydrogen gas​
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0.2 moles

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Which of the following would be a good solvent choice when preparing your sample for 1H NMR?
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e. None of the answer choices

Explanation:

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A 7.028 gram sample of a sodium sulfate hydrate is heated. After driving off all the water, 3.100 grams of the anhydrous salt is
Nady [450]

Answer:

NaSO_4.10H_2O

Explanation:

Given that:-

Mass of the hydrated salt = 7.028 g

Mass of the anhydrous salt = 3.100 g

Mass of water eliminated = Mass of the hydrated salt - Mass of the anhydrous salt = 7.028 - 3.100 g = 3.928 g

<u>Moles of water: </u>

Mass of water = 3.928 g

Molar mass of H_2O = 18 g/mol

The formula for the calculation of moles is shown below:

moles = \frac{Mass\ taken}{Molar\ mass}

Thus, moles are:

moles= \frac{3.928\ g}{18\ g/mol}

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<u>Moles of anhydrous salt: </u>

Amount = 3.100 g

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Thus, moles are:

moles= \frac{3.100\ g}{142.04\ g/mol}

moles_{CaSO_4}= 0.02182\ mol

The simplest ratio of the two are:

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<u>Hence, the formula for hydrate is:- NaSO_4.10H_2O</u>

7 0
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