NaturalGas
RealtimeSystem
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Sigma KEE - NaturalGas
NaturalGas
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NaturalGas is a combustible mixture of methane and higher hydrocarbons.
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合成物質 |
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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