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3 years ago

Why does silicone dioxide have a high melting point ?

Chemistry

1 answer:

VashaNatasha [74]3 years ago

8 0

Answer:

Where SiO2 has strong covalent bonds between molecules, SO3 only has weak van der waals intermolecular forces holding its molecules together. Since covalent bonds require more energy to overcome than van der waals, SiO2 requires a higher temperature than SO3 to melt, thus SiO2 has a higher melting point.

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HELP ILL MARK BRAINLIEST

exis [7]

Answer:

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Explanation:

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3 years ago

Process by which plants, algae, and many types of bacteria use sunlight, water, and carbon dioxide to make food and oxygen

Katena32 [7]

Answer: Photosynthesis

Explanation:

<em>The process of photosynthesis</em> is used to help make food for plants. The inputs are sunlight, water (H2O), and carbon dioxide (CO2). Then the outputs are glucose (C6H12O6) which is food, and oxygen (O2) is released.

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2 years ago

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Aliun [14]

Note the formula

$\boxed{\sf Mass\:no=No\:of\:protons+No\:of\:neutrons}$

For X:-

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For Y:-

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$\\ \sf\longmapsto 16-8=8protons$

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Option D is correct

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2 years ago

A single atom is in a balanced electrical state.

slega [8]

I believe the answer is: Protons and Neutrons
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3 years ago

Read 2 more answers

Consider the solubilities of a particular solute at two different temperatures.

GenaCL600 [577]

Explanation:

can you make your question understandable?

I'll try to solve it

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2 years ago