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Which of the following best explains why matter exhibits such diversity in its properties and characteristics?
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1. Intro to General Chemistry
Classification of Matter
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Which of the following substances contains silica (SiO_2)?
A
Quartz
B
Table salt
C
Copper metal
D
Ice
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Understand that silica is the chemical compound silicon dioxide, which has the formula \(\mathrm{SiO_2}\).
Recognize that quartz is a mineral composed primarily of silicon dioxide, so it contains silica.
Identify that table salt is sodium chloride (\(\mathrm{NaCl}\)), which does not contain silicon or oxygen in the form of silica.
Know that copper metal is an elemental metal (\(\mathrm{Cu}\)) and does not contain silica.
Realize that ice is solid water (\(\mathrm{H_2O}\)) and does not contain silicon or oxygen in the form of silica.
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