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2 years ago

Which best characterizes a crystal

Chemistry

2 answers:

atroni [7]2 years ago

6 0

<span>A dense substance that is hard and imcompressible.</span>

Pachacha [2.7K]2 years ago

5 0

<h3><u>Answer;</u></h3>

A dense substance that is hard and incompressible

<h3><u>Explanation</u>;</h3>

<em><u>Crystals are solids that are made up of particles such as molecules, atoms or ions, </u></em>which are arrange in a highly ordered microscopic structure, forming a crystal lattice which extends in all directions.
Examples of crystals include<em><u> quartz,</u></em> that is made up of silicon (iV) oxide molecules that are arranged in a lattice,<u><em>table salt</em></u> is another example that is made up of sodium and chloride ions that are arranged in a lattice
Crystals are very ordered, they may be made up of atoms of the same elements or atoms of different elements such as in the case of table salt.

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Explanation:

The unbalanced equation is

$\text{CH}_{4}+\text{O}_{2} \longrightarrow \text{CO}_{2}+\text{H}_{2}\text{O}$

Balancing this equation, we get:

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1 year ago

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1 year ago

Determine the oxidation number of sodium in Na202

Olegator [25]

Answer:

Explanation:

Na₂O₂

NOTE: the oxidation number of oxygen is always –2 except in peroxides where it is –1.

Thus, we can obtain the oxidation number of sodium (Na) in Na₂O₂ as illustrated below:

Na₂O₂ = 0 (oxidation number of ground state compound is zero)

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Collect like terms

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Divide both side by 2

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Thus, the oxidation number of sodium (Na) in Na₂O₂ is +1

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2 years ago

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Hoped this helped :D

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2 years ago