Examlex
A city with a population of 5 million or more is called a__________ .
pH
A measurement system designed to determine the level of acidity or alkalinity in water-based solutions, marked on a continuum from 0 to 14.
K
In the context of chemistry, often represents the equilibrium constant, symbolizing the ratio of product concentrations to reactant concentrations at equilibrium.
pH
A numeric scale used to specify the acidity or basicity (alkalinity) of an aqueous solution, with 7 being neutral, values below 7 acidic, and above 7 basic.
K
The symbol for potassium, a chemical element of atomic number 19, essential for living organisms.
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