There are many more examples. Note that measuring each of these properties will not alter the basic nature of the substance. Examples of chemical properties are: heat of combustion, reactivity with water, PH, and electromotive force.
Mathematical fonts. In mathematical mode you can change the typefaces of the fonts when needed. For instance, it's customary to represent real numbers with a blackboard bold font, or topological spaces with calligraphic font. This article shows several fonts in math mode.
A few specific sans serif fonts include Arial, Tahoma, Verdana, Geneva, Avant Garde and Helvetica. Serif fonts are acceptable for printed business letters because the decorative additions are easily distinguished on paper. few specific sans serif fonts include Arial, Tahoma, Verdana, Geneva, Avant Garde and Helvetica. Serif fonts are acceptable for printed business letters because the decorative additions are easily distinguished on paper.