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dem82 [27]
3 years ago
15

When molten rock undergoes crystallization above ground, what type of rock results?

Chemistry
2 answers:
vodka [1.7K]3 years ago
5 0
I am pretty sure that the answer is B. extrusive rock. I hope that this helps you!! Good Luck!!
Eva8 [605]3 years ago
5 0
Extrusive igneous rock                                                                                                 
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A _____ activation energy is required to break the double bonds of unsaturated hydrocarbons. high extreme large low
irina1246 [14]

A large activation energy is required to break the double bonds of unsaturated hydrocarbons.

<h3>What are Unsaturated hydrocarbons ?</h3>

Unsaturated hydrocarbons are defined as the hydrocarbons in which double or triple bonds are present between two adjacent carbon atoms. They are known as alkenes and alkynes respectively. The general formula for these hydrocarbons is CnH2n and CnH2n-2

  • In unsaturated hydrocarbons, more number of bonds are formed, thus the bond strength of the bonds formed will be more because the orbitals come closer to each other.
  • As, bond strength of unsaturated hydrocarbons are more. So, more energy will be required to break the bond between them.

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How does pollution affect air resources?
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Answer: it gets inside the air and then it infects the air's resourses

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What type of reaction is : CaCo3+ HCl = CaCl2 + CO2 +H2O
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Which compound in each pair is more soluble in water?(b) Calcium phosphate or magnesium phosphate
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<u>larger is the value of </u>Ksp<u> the higher will the solubility of solid in water.</u>

What is called compound?

  • In chemistry, a compound is a substance made up of two or more different chemical elements combined in a fixed ratio.
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  • These bonds form as a result of sharing or exchanging electrons between atoms.

The equation for the dissociation of a solid MX in water is given below

MX(s) ⇄ Mⁿ⁺(aq) + Xⁿ⁻ (aq)

Assume s be the solubility of MX in pure water, then the equilibrium concentrations of ions are

[ Mⁿ⁺] = s

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The expression for the solubility product constant (Ksp) is as follows

Ksp = [ Mⁿ⁺] [ Xⁿ⁻ ]

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