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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 defined by IUPAC as "A liquid or solid phase containing more than one substance, when for convenience one (or more) substance, which is called the solvent, is treated ...

3. Mixture - Wikipedia

   en.wikipedia.org/wiki/Mixture

   In chemistry, a mixture is a material made up of two or more different chemical substances which can be separated by physical method. It is an impure substance made up of 2 or more elements or compounds mechanically mixed together in any proportion. [1] A mixture is the physical combination of two or more substances in which the identities are ...

4. Lewis structure - Wikipedia

   en.wikipedia.org/wiki/Lewis_structure

   The answer is the number of electrons that make up the bonds. The rest of the electrons just go to fill all the other atoms' octets. Another simple and general procedure to write Lewis structures and resonance forms has been proposed. [6] This system works in nearly all cases, however there are 3 instances where it will not work [citation ...

5. Chemical thermodynamics - Wikipedia

   en.wikipedia.org/wiki/Chemical_thermodynamics

   In solution chemistry and biochemistry, the Gibbs free energy decrease (∂G/∂ξ, in molar units, denoted cryptically by ΔG) is commonly used as a surrogate for (−T times) the global entropy produced by spontaneous chemical reactions in situations where no work is being done; or at least no "useful" work; i.e., other than perhaps ± P dV.

6. Order of operations - Wikipedia

   en.wikipedia.org/wiki/Order_of_operations

   Order of operations. In mathematics and computer programming, the order of operations is a collection of rules that reflect conventions about which operations to perform first in order to evaluate a given mathematical expression. These rules are formalized with a ranking of the operations. The rank of an operation is called its precedence, and ...

7. Cage effect - Wikipedia

   en.wikipedia.org/wiki/Cage_effect

   Cage effect. Free radicals in solvent can potentially react with a monomer within the solvent cage or diffuse out. In chemistry, the cage effect[1] (also known as geminate recombination[2]) describes how the properties of a molecule are affected by its surroundings. First introduced by James Franck and Eugene Rabinowitch [3][4] in 1934, the ...