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Shalnov [3]
3 years ago
11

Imagine you are handed a mineral sample. It breaks with a conchoidal fracture, but displays no cleavage. It does not react with

hydrochloric acid, is a light pink color, and has a nonmetallic luster. It is harder than a streak plate, and has a specific gravity of 2.65. What mineral is it?
Chemistry
1 answer:
Shalnov [3]3 years ago
7 0

Answer:

Quartz.

Explanation:

According to the characteristics given in the question the mineral must surely be Quartz.

Quartz does not react with hydrochloric acid.

Its is pink in color and has anon metallic luster. It has a specific gravity of 2.65. Quartz is continuous framework of SiO4 , with each oxygen being shared with two tetrahedra, giving an overall chemical formula of SiO2.

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HNO3 is the oxidizing agent

Explanation:

Step 1:

The oxidizing agent is responsible to oxidize another.  but  itself undergoes  a reduction  .

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H has an oxidation number of +1

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Fe(NO3)3

O has an oxidation number of -2 ( we have 3 times O so this makes -6)

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Fe doesn't change from oxidation number. It stays +3

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The answer is HNO3

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