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Substancia Composta |
The Class of Substances that contain two or more elements (ElementalSubstances) in definite proportion by weight. The composition of a pure compound will be invariant, regardless of the method of preparation. Compounds are composed of more than one kind of atom (element). The term molecule is often used for the smallest unit of a compound that still retains all of the properties of the compound. Examples: Table salt (sodium chloride, NaCl), sugar (sucrose, C_{12}H_{22}O_{11}), and water (H_2O).
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Substancia |
An Object in which every part is similar to every other in every relevant respect. More precisely, something is a Substance when it has only arbitrary pieces as parts - any parts have properties which are similar to those of the whole. Note that a Substance may nonetheless have physical properties that vary. For example, the temperature, chemical constitution, density, etc. may change from one part to another. An example would be a body of water.
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AminoAcid | Organic acids that are the building blocks of Proteins. |
| | SulfuricAcid | Sulfuric acid is a highly corrosive strong mineral acid with the molecular formula H2SO4. It is a colorless to slightly yellow viscous Liquid and is soluble in Water. The corrosiveness of it is mainly due to its strong acidic nature, strong dehydrating property and if concentrated strong oxidizing property. It has many applications and is a central Substance in the chemical industry. Principal uses include LeadAcidWetBattery(s) for Automobiles and other Vehicles, mineral processing, fertilizer manufacturing, oil refining, wastewater processing, and ChemicalSynthesis. [from Wikipedia] |