Question

are .
what
pure dubstance a
give two
Example of pure
Substance​

Answer 1

Answer:

Examples of Pure Substances

All elements are mostly pure substances. A few of them include gold, copper, oxygen, chlorine, diamond, etc. Compounds such as water, salt or crystals, baking soda amongst others are also grouped as pure substances.

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Answer 2

Answer:

A pure substance or chemical substance is a material that has a constant composition (is homogeneous) and has consistent properties throughout the sample. A pure substance participates in a chemical reaction to form predictable products. In chemistry, a pure substance consists of only one type of atom, molecule, or compound. In other disciplines, the definition extends to homogeneous mixtures.

Examples of Pure Substances

Examples of pure substances include tin, sulfur, diamond, water, pure sugar (sucrose), table salt (sodium chloride) and baking soda (sodium bicarbonate). Crystals, in general, are pure substances.

Tin, sulfur, and diamond are examples of pure substances that are chemical elements. All elements are pure substances. Sugar, salt, and baking soda are pure substances that are compounds. Examples of pure substances that are crystals include salt, diamond, protein crystals, and copper sulfate crystals.

Depending on who you talk to, homogeneous mixtures may be considered examples of pure substances. Examples of homogeneous mixtures include vegetable oil, honey, and air. While these substances contain multiple types of molecules, their composition is consistent throughout a sample. If you add soot to air, it ceases to be a pure substance. Contaminants in water make it impure.

Heterogeneous mixtures are not pure substances. Examples of materials that are not pure substances include gravel, your computer, a mixture of salt and sugar, and a tree.

Explanation:

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