Why are silver and water classified as pure substances?
a - They are both substances with a composition that varies.
b - They are both mixtures with a composition that always stays the same.
c - They are both substances with a composition that always stays the same.
e -
They are both mixtures with a composition that varies.
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It is considered a pure substance because it has a uniform and definite composition. All samples of sodium chloride are chemically identical. Water is also a pure substance. Salt easily dissolves in water, but salt water cannot be classified as a pure substance because its composition can vary.
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Answer:
It is considered a pure substance because it has a uniform and definite composition. All samples of sodium chloride are chemically identical. Water is also a pure substance. Salt easily dissolves in water, but salt water cannot be classified as a pure substance because its composition can vary
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