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  2. Polar surface area - Wikipedia

    en.wikipedia.org/wiki/Polar_surface_area

    PSA is a commonly used medicinal chemistry metric for the optimization of a drug's ability to permeate cells. Molecules with a polar surface area of greater than 140 angstroms squared (Å 2) tend to be poor at permeating cell membranes. [1]

  3. Calculator Applications (UIL) - Wikipedia

    en.wikipedia.org/wiki/Calculator_Applications_(UIL)

    Calculator Applications is one of several academic events sanctioned by the University Interscholastic League (UIL) in Texas, US. It is also a competition held by the Texas Math and Science Coaches Association, using the same rules as the UIL. Calculator Applications is designed to test students' abilities to use general calculator functions.

  4. Specific rotation - Wikipedia

    en.wikipedia.org/wiki/Specific_rotation

    In chemistry, specific rotation ([α]) is a property of a chiral chemical compound. [ 1 ] : 244 It is defined as the change in orientation of monochromatic plane-polarized light , per unit distance–concentration product, as the light passes through a sample of a compound in solution.

  5. Chemical test - Wikipedia

    en.wikipedia.org/wiki/Chemical_test

    In chemistry, a chemical test is a qualitative or quantitative procedure designed to identify, quantify, or characterise a chemical compound or chemical group. Purposes

  6. Reduction potential - Wikipedia

    en.wikipedia.org/wiki/Reduction_potential

    In aqueous solutions, redox potential is a measure of the tendency of the solution to either gain or lose electrons in a reaction. A solution with a higher (more positive) reduction potential than some other molecule will have a tendency to gain electrons from this molecule (i.e. to be reduced by oxidizing this other molecule) and a solution with a lower (more negative) reduction potential ...

  7. Compatibility (chemical) - Wikipedia

    en.wikipedia.org/wiki/Compatibility_(chemical)

    In addition, chemical compatibility refers to the container material being acceptable to store the chemical or for a tool or object that comes in contact with a chemical to not degrade. For example, when stirring a chemical, the stirrer must be stable in the chemical that is being stirred. Many companies publish chemical resistance charts.

  8. Remove Banner Ads with Ad-Free AOL Mail | AOL Products

    www.aol.com/products/utilities/ad-free-mail

    SYSTEM REQUIREMENTS. Mobile and desktop browsers: Works best with the latest version of Chrome, Edge, FireFox and Safari. Windows: Windows 7 and newer Mac: MacOS X and newer Note: Ad-Free AOL Mail ...

  9. Polarizability - Wikipedia

    en.wikipedia.org/wiki/Polarizability

    This results because of alkene's and arene's more electronegative sp 2 carbons to the alkane's less electronegative sp 3 carbons. [ 9 ] Ground state electron configuration models often describe molecular or bond polarization during chemical reactions poorly, because reactive intermediates may be excited, or be the minor, alternate structures in ...