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laila [671]
2 years ago
11

What are the 4 most abundant minerals in the continental crust? What percentage do these 4 makeup of the total?

Chemistry
1 answer:
Tanya [424]2 years ago
5 0

Answer:

SiO_2, Al_2O_3, CaO, MgO

Explanation:

The four most abundant minerals in the continental crust are, SiO_2, Al_2O_3, CaO, MgO.

The percentages are

SiO_2=60.6\%

Al_2O_3=15.9\%

CaO=6.4\%

MgO=4.7\%

SiO_2 is called quartz

Al_2O_3 is called corundum

CaO is called calcium oxide or quick lime

MgO is called magnesium oxide or magnesia

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Titanium dioxide, TiO₂, reacts with carbon and chlorine to give gaseous TiCl₄: TiO₂+2C+2CI₂−TiCI₄+2CO The reaction of 7.39 kg ti
Dima020 [189]

Answer:

17.57kg of TiCl_{4} and its percentage yield is 81.0%

Explanation:

Through the reaction you can get the theoretical amount of  TiCl_{4} that must be produced.

7.39kgTiO_{2}x\frac{1kmolTiO_{2} }{79.867kgTiO_{2}}x \frac{1kmolTiCl_{4}}{1kmolTiO_{2}}x\frac{189.867kgTiCl_{4} }{1kmolTiCl_{4}}=17.57kgTiCl_{4}

If the amount obtained is less than the theoretical amount, it means that the initial sample was not 100% pure. Now the actual amount obtained is compared with the theoretical amount using a percentage

yield=\frac{actual amount}{theoretical amount}x100= \frac{14.24kg}{17.57kg}x100=81.0%

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2 years ago
Read the passage below about acupuncture.
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<span>

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<span>H2C=O---------H-OH </span>

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1 year ago
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