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Base (chemistry) Soaps are weak bases formed by the reaction of fatty acids with sodium hydroxide or potassium hydroxide. In chemistry, there are three definitions in common use of the word " base ": Arrhenius bases, Brønsted bases, and Lewis bases. All definitions agree that bases are substances that react with acids, as originally proposed ...
Throws or feints a throw from the rubber to an unoccupied base, unless a play is imminent. Steps or feints from the rubber to first or third base without completing the throw. Delivers a quick return, a pitch thrown right after receiving the ball back, with intent to catch the batter off-guard.
If a batter hits the ball "up the alley" with enough force, he has a stronger chance of advancing beyond first base and being credited with an extra-base hit. Typically, this is an appropriate term for describing a line drive or ground ball; fly balls that hit the wall are not normally described this way.
A basis point is a unit of measure used in finance to describe the percentage change in the value or rate of a financial instrument.
In baseball, to lead off, or to take a lead, refers to the position a baserunner takes just prior to a pitch, a short distance away from the base the player occupies. [2] A "lead" can also refer to that distance. [2] A typical lead is six to ten feet (two to three meters) from the base. If the lead is too large, the runner risks being picked off.
Moreover, most other SI base units are defined by their relationship to the second: the meter is defined by setting the speed of light (in vacuum) to be 299 792 458 m/s, exactly; definitions of the SI base units kilogram, ampere, kelvin, and candela also depend on the second.
Contents. SI base unit. The SI base units are the standard units of measurement defined by the International System of Units (SI) for the seven base quantities of what is now known as the International System of Quantities: they are notably a basic set from which all other SI units can be derived. The units and their physical quantities are the ...
The logarithm is denoted " logbx " (pronounced as "the logarithm of x to base b ", "the base-b logarithm of x ", or most commonly "the log, base b, of x "). An equivalent and more succinct definition is that the function logb is the inverse function to the function .