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Igoryamba
2 years ago
7

When glass is formed, which of these takes place FIRST? A) The sand turns to liquid. B) The molecules become hard. C) The sand i

s heated intensely. D) The molecules become disordered.
Chemistry
1 answer:
ohaa [14]2 years ago
8 0
<h2>Answer:</h2>

The correct answer is option C which is, "The sand is heated intensely".

<h3>Explanation:</h3>

Glass is the allotropic compound of silicon dioxide. For the formation of glass, first of all the sand which contains the silicon dioxide is melted. For this purpose it is heated intensely.

Due to heating at high temperature, it melts. After melting it ifs cooled immediately. In this step molecules become hard without any special pattern formation.

That is why glass is an allotropic compound. Hence correct answer is option C.

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3 0
2 years ago
The question is below
pogonyaev
The reaction that has the greatest tendency to be reversed in an spontaneous redox reaction is that whose forward standard reduction potential is the lowest (mos negative) one because that means that the reversed reaction will have the highest (most positive) standard reduction potential.

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5 0
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2 Calculate What is the density of a liquid with a mass of 17.4g<br> and a volume of 20 mL?
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