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  2. Solution (chemistry) - Wikipedia

    en.wikipedia.org/wiki/Solution_(chemistry)

    Solution (chemistry) Making a saline water solution by dissolving table salt ( NaCl) in water. The salt is the solute and the water the solvent. In chemistry, a solution is a special type of homogeneous mixture composed of two or more substances. In such a mixture, a solute is a substance dissolved in another substance, known as a solvent.

  3. Alkali - Wikipedia

    en.wikipedia.org/wiki/Alkali

    Alkali. In chemistry, an alkali ( / ˈælkəlaɪ /; from Arabic: القلوي, romanized : al-qaly, lit. 'ashes of the saltwort ') is a basic, ionic salt of an alkali metal or an alkaline earth metal. An alkali can also be defined as a base that dissolves in water. A solution of a soluble base has a pH greater than 7.0.

  4. Ansatz - Wikipedia

    en.wikipedia.org/wiki/Ansatz

    Use. An ansatz is the establishment of the starting equation (s), the theorem (s), or the value (s) describing a mathematical or physical problem or solution. It typically provides an initial estimate or framework to the solution of a mathematical problem, [3] and can also take into consideration the boundary conditions (in fact, an ansatz is ...

  5. Aqueous solution - Wikipedia

    en.wikipedia.org/wiki/Aqueous_solution

    An aqueous solution is a solution in which the solvent is water. It is mostly shown in chemical equations by appending (aq) to the relevant chemical formula. For example, a solution of table salt, also known as sodium chloride (NaCl), in water would be represented as Na+(aq) + Cl−(aq). The word aqueous (which comes from aqua) means pertaining ...

  6. If you experience some of the following signs and symptoms of depression nearly every day for at least 2 weeks, you may be living with depression: feeling sad, anxious, or “empty”. feeling ...

  7. Overengineering - Wikipedia

    en.wikipedia.org/wiki/Overengineering

    Overengineering (or over-engineering) is the act of designing a product or providing a solution to a problem that is complicated in a way that provides no value or could have been designed to be simpler. It is generally criticized in terms of value engineering as wasteful of resources such as materials, time and money.

  8. Solid solution - Wikipedia

    en.wikipedia.org/wiki/Solid_solution

    A solid solution, a term popularly used for metals, is a homogeneous mixture of two different kinds of atoms in solid state and having a single crystal structure. [1] Many examples can be found in metallurgy, geology, and solid-state chemistry. The word "solution" is used to describe the intimate mixing of components at the atomic level and ...

  9. Solvation - Wikipedia

    en.wikipedia.org/wiki/Solvation

    By an IUPAC definition, [4] solvation is an interaction of a solute with the solvent, which leads to stabilization of the solute species in the solution. In the solvated state, an ion or molecule in a solution is surrounded or complexed by solvent molecules. Solvated species can often be described by coordination number, and the complex ...