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Aleonysh [2.5K]
2 years ago
15

Obsidian is formed when rapidly cooling ions are randomly distributed, creating a _____ texture. wikianswers

Chemistry
2 answers:
Serhud [2]2 years ago
7 0

Answer:

The correct answer is glassy.

Explanation:

Obsidian, or also known as volcanic glass, is a type of igneous rock (volcanic rock belonging to the silicates), formed by aluminum silicates and a large percentage of silicic oxides.

The obsidian is formed when a volcano emerges lava that cools quickly, which has a minimum growth of crystals. In the flows where it is obtained, the high silica oxide content induces a high viscosity and degree of polymerization of the lava. The inhibition of atomic diffusion in this highly viscous and polymerized lava explains the lack of crystal growth, giving shape to the glassy texture.

Have a nice day!

tangare [24]2 years ago
4 0
Creates a glassy texture. 

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Aldehydes and ketones having α-hydrogen atoms, undergoes aldol condensation, in present of base (NaOH). 

The initial product formed during this reaction is β-hydroxy alcohol, which then undergoes dehydration to form α,β-unsaturated aldehyde or ketone.

In present case, 3,3-dimethyl-2-butanone  has 2α-hyrogen atom, while methylcyclopentane-1-carbaldehyde has 1α-hydrogen atom. So the major product formed during cross aldol condensation reaction of these reactants is:
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The complete reaction product formed is shown below. 

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3 years ago
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Answer:

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3 0
1 year ago
You have dissolved 10 g sodium oxide in 200 ml water.calculate concentration of the solution
e-lub [12.9K]

Answer:

0.85 Molar Na2O

Explanation:

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In this case, we have 0.161 moles Na2O in 0.200 L of solvent.

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Answer:

3

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