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Aleonysh [2.5K]
3 years ago
15

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

Chemistry
2 answers:
Serhud [2]3 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]3 years ago
4 0
Creates a glassy texture. 

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3 0
2 years ago
Two elements next to each other that have decreasing atomic masses
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Answer:

  • <u>Tellurium (Te) and iodine (I) are two elements </u><em><u>next to each other that have decreasing atomic masses.</u></em>

Explanation:

The <em>atomic mass</em> of tellurium (Te) is 127.60 g/mol and the atomic mass of iodine (I) is 126.904 g/mol; so, in spite of iodine being to the right of tellurium in the periodic table (because the atomic number of iodine is bigger than the atomic number of tellurium), the atomic mass of iodine is less than the atomic mass of tellurium.

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3 years ago
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