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Chemical substance


A chemical substance is a form of matter that has constant chemical composition and ... A common example of a chemical substance is pure water; it has the same properties and the same ratio of hydro...

What Is a Pure Substance? (Chemistry Definition)


This is the definition of pure substance along with examples of things that are pure substances (and ones that aren't).

A substance is a form of matter that has a constant chemical composition and characteristic properties. It cannot be separated into its several components without breaking its chemical bonds.
Water, gold, table salt and sugar are all substances.

What Is a Pure Substance? - Chemistry - About.com


You may have wondered what is meant by the term 'pure substance'. Here's what a pure substance is and how you can tell if something is pure or not.

What is a pure substance in science? | Reference.com


A pure substance is any single type of material that has not been contaminated by another substance. Water is considered a pure substance if the water contains  ...

Pure Substance in Chemistry: Definition, Properties & Examples ...


May 3, 2015 ... This lesson introduces the concept of the pure substance. The impact of purity on the physical and chemical properties are discussed and ...

What is a pure substance? - Chemistry for kids


A pure substance is a substance that cannot be separated by physical means. eg . filtration, evaporation, distillation or chromatography. Examples of pure ...

Definition of substance - Chemistry Dictionary - Chemicool


A substance is matter which has a specific composition and specific properties. Every pure element is a substance. Every pure compound is a substance.

How to Distinguish Pure Substances and Mixtures - dummies


All matter can be classified as either a pure substance or a mixture. ... the different parts of a mixture can be easily separated by physical means, such as filtration ...

Popular Q&A
Q: Why is water considered a pure substance? - Quora
A: This is a very interesting question. I think the answer has many dimensions. First, water is ... It is transparent, almost tasteless, and pure white when froze... Read More »
Source: www.quora.com
Q: Why is air not a pure substance? - Quora
A: A pure substance is either an element (e.g. carbon, oxygen, nitrogen, sodium, lead etc.) or a compound (e.g. H2O, CO2, NH3, NaCl etc.). Air comprises elements... Read More »
Source: www.quora.com
Q: Why is table salt a pure substance? - Quora
A: Now, if you're taking about iodized table sale (the most common type) then no, it's not a pure substance because you can remove the iodine without chan... Read More »
Source: www.quora.com
Q: Is HCl a pure substance? - Quora
A: Yes, HCl (hydrogen chloride) is a pure substance. In chemistry, both elements and compounds are pure substances. Hydrogen chloride is a binary compound of ... Read More »
Source: www.quora.com
Q: Is water a pure substance? - Quora
A: Pure water is, but pure water is pretty rare, since it is such a good ionic solvent. Your distilled water remains pure until you open the container ... Read More »
Source: www.quora.com