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Explain pure substance.

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Pure substances are defined as substances that are made of only one type of atom or only one type of molecule (a group of atoms bonded together). The measure of whether a substance is pure is known as purity. For example, pure iron would only contain iron atoms, and, as in the sugar cube mentioned above,... read more
Pure substances are defined as substances that are made of only one type of atom or only one type of molecule (a group of atoms bonded together). The measure of whether a substance is pure is known as purity. For example, pure iron would only contain iron atoms, and, as in the sugar cube mentioned above, pure sugar would only contain molecules of the substance called sucrose. read less
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Pure substances are defined as substances that are made of only one type of atom or only one type of molecule (a group of atoms bonded together). The measure of whether a substance is pure is known as purity. The measure of whether a substance is pure is known as purity. For example, pure iron would... read more

Pure substances are defined as substances that are made of only one type of atom or only one type of molecule (a group of atoms bonded together). The measure of whether a substance is pure is known as purity. The measure of whether a substance is pure is known as purity. For example, pure iron would only contain iron atoms, and, as in the sugar cube mentioned above, pure sugar would only contain molecules of the substance called sucrose.

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A substance that is made up of only one type of atom (element) or only one type of molecule. Pure substances adhere to predictable physical and chemical properties.
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Home Tutor

A pure substance is a substance that cannot be separated by physical means. eg. filtration, evaporation, distillation or chromatography. Examples of pure substances include water, gold, glucose, carbon dioxide, oxygen and hydrogen. A pure substance is made up of one type of particle. The particle... read more
A pure substance is a substance that cannot be separated by physical means. eg. filtration, evaporation, distillation or chromatography. Examples of pure substances include water, gold, glucose, carbon dioxide, oxygen and hydrogen. A pure substance is made up of one type of particle. The particle that makes up water is H2O. The particle that makes up carbon dioxide is CO2. Each pure substance has its own set of unique set chemical and physical properties which helps identifies it. Water has a melting point of 0°C and a boling point of 100°C. It is also colorless and odorless. Gold however, is yellow in color, solid at room temperature and pressure and is is good conductor of electricity. read less
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The substances which are made by only one type of atoms or molecules are called pure substances. Example of pure elements are : Iron, silver. Example of pure compounds are : Water, carbon dioxide.
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Teacher

in very simple terms pure substances are those which are formed by only one type of atom or one type of molecule(group of atoms). like pure iron would contain only iron molecule and nothing else.
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Tutor

A substance that has constant chemical composition through out its mass
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Engineering Topper

Pure substances are defined as substances that are made of only one type of atom or only one type of molecule (a group of atoms bonded together). The measure of whether a substance is pure is known as purity.
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Maths Science Expert

The pure substance within chemistry is a very simple concept to grasp. Pure substances are defined as substances that are made of only one type of atom or only one type of molecule (a group of atoms bonded together). The measure of whether a substance is pure is known as purity.
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Tutor

The term has a specific meaning in chemistry. A pure substance is a sample of matter with both definite and constant composition with distinct chemical properties. Ex. water diamond gold table salt (sodium chloride) ethanol brass bronze saline solution
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