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compound substance |
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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brackish water | BrackishWater is the subclass of Water occuring in a natural environment that has more salinity than FreshWater, but not as much as SeaWater. Technically, it contains between 0.5 and 30 Gram of salt per liter oy BrackishWater.[Wikipedia] |
| | freshwater | FreshWater is the subclass of Water that has low soluble mineral content. See also DrinkingWater. |
| | ground water | GroundWater is the subclass of Water that is found in deposits in the earth. |
| | ice | Water that has the PhysicalState of Solid. |
| | purified water | PurifiedWater is Water that has been mechanically filtered or processed to remove impurities and make it suitable for use. Distilled water was, formerly, the most common form of purified water, but, in recent years, water is more frequently purified by other processes including capacitive deionization, reverse osmosis, carbon filtering, microfiltration, ultrafiltration, ultraviolet oxidation, or electrodeionization.[Wikipedia] |
| | rain | Rain refers to the Water resulting from Raining. |
| | sea water | SeaWater is the subclass of Water from a Sea or Ocean. On average, seawater in the world's ocean has a salinity of about 3.5% or 35g/L. This means that every Liter of seawater has approximately 35 Gram of dissolved salt (predominately sodium and cholride ion) .[Wikipedia] |
| | steam | Steam refers to the Gas form of Water that is a result of Boiling it and diffusing it into the air |