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NemiM [27]
3 years ago
8

What is a variable and what do it do

Chemistry
2 answers:
xz_007 [3.2K]3 years ago
4 0
A variable is a quantity that may change within the context of a mathematical problem or experiment. Typically, we use a single letter to represent a variable. The letters x, y, and z are common generic symbols used for variables.


Variables are used to store information to be referenced and manipulated in a computer program. They also provide a way of labeling data with a descriptive name, so our programs can be understood more clearly by the reader and ourselves. It is helpful to think of variables as containers that hold information.
frosja888 [35]3 years ago
3 0
Varuable, In algebra, a symbol (usually a letter) standing in for an unknown numerical value in an equation :)
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What energy is required to remove the remaining electron from singly ionized helium?
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To remove one electron from singly ionized helium, will require approximately 54.4 eV or 8.72 1020 J of energy.

The amount of energy required by an isolated, gaseous molecule in the electronic state of the ground to absorb in order to discharge an electron and produce a cation has been known as the ionization energy. The amount of energy required for every atom in a mole to drop one electron is most often given as kJ/mol.

Anything that causes electrically neutral atoms and molecules to gain or lose electrons in order to become electrically charged atoms as well as molecules .

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