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Active mass
ACTIVE MASS

Definition: The concentration (usually expressed in moles per liter) of a reacting substance.
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See perfect concentration (4).
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See perfect percent.

See perfect level (1).
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See perfect measurement (2).

1520 Products

1520 Products was established in 2005 with the purpose of entertaining and teaching us on key and important aspects of life (such as marriage, sex, etc) through the playing of games which will allow us to laugh but at the same time pass a message of what is the right or ideal way.

1520 Sex Game

1520 Puzzles

1520 Marriage Game