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krek1111 [17]
3 years ago
13

How do you intrusive rocks form

Chemistry
1 answer:
Elodia [21]3 years ago
8 0

Answer: Intrusive rock also called plutonic rock. They are formed from magma forced into older rocks at depths within the earths crust.

Explanation:

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Thio breaks disul- fide bonds by adding extra hydrogen atoms to the two sulfur atoms joined in the disulfide bond. Neutralization, with an oxidizing agent, rebuilds the disulfide bonds by adding oxygen to the extra hydrogen atoms to form water.
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Which of the following is a property of salts? (5 points)
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A 30.7 g sample of Strontium nitrate, Sr(NO3)2•nH2O, is heated to a constant mass of 22.9 g. Calculate the hydration number.
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Answer:

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Explanation:

<u>1) Mass of water in the hydrated compound</u>

Mass of water = Mass of the hydrated sample - mass of the dehydrated compound

Mass of water = 30.7 g - 22.9 g = 7.8 g

<u>2) Number of moles of water</u>

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  • Number of moles of H₂O = 7.9 g / 18.015 g/mol = 0.439 mol

<u>3) Number of moles of Strontium nitrate dehydrated, Sr (NO₃)₂</u>

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  • Number of moles of Sr (NO₃)₂ = 22.9 g / 211.63 g/mol =  0.108 mol

<u>4) Ratio</u>

  • 0.439 mol H₂O / 0.108 mol Sr(NO₃)₂ ≈  4 mol H₂O : 1 mol Sr (NO₃)₂

Which means that the hydration number is 4.

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Happy studying! ^_^</span>
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