The first person to categorize acids and bases in chemical terms would be Danish chemist, Soren Peder Lauritz Sorensen, and he did so in 1909. Sorensen was first to introduce the concept of pH, the scale of measure for acidity and basicity.
Precipitation in weather terms (rain, snow, etc.) is a physical process. Precipitation in chemical terms (e.g. lead iodide falling out of solution) is a chemical change.
A not entertaining person
The formation of chemical bonds releases energy. It is an exothermic process. The breaking of chemical bonds takes energy. It is an endothermic process.
Chemical reactions are described based on observations. It may be in terms of changes in color, state of matter, or density.
A theoretical yield is what we think it may be as opposed to what it actually is. In another sense, a theoretical yield deals with principals as opposed to practice
Svante Arrhenius
Please define snark or the context in which the word is used - there is no such word as such in terms of a performance of something.
define 'Want' in marketing terms
Augustus - Venerable. Princeps - First Citizen.
An acid is a substance that donates a proton (H+) in a chemical reaction, while a base is a substance that accepts a proton. Acids increase the concentration of H+ ions in a solution, while bases reduce the concentration of H+ ions.
A person who crosses a picket line, or works where the legal union has called a strike.
"Defined items" are defined in terms of "undefined terms".
are you asking for help on finding definition for geometric terms? if so go to: http://library.thinkquest.org/2647/geometry/glossary.htm#b and to wikipedia for x and j terms
the three terms; point, line and plane can be defined although it is called the undefined terms still we know and we can define the meanings of that terms.. common sense? joke.
No.
Change to comply
Yes. Even though those terms are left undefined, they are used together with ordinary words to define other geometric terms.