Acidic, Basic, and Neutral Solutions
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indicator
A compound that changes color in the presence of an acid or a base
pH
A numerical scale that indicates how acidic or basic a substance is
base
A substance that decreases the hydrogen ion concentration in a solution.
acid
A substance that increases the hydrogen ion concentration of a solution.
hydronium ion
Hydrogen ion combines with a water molecule to form a hydronium ion, H3O(+).
pH meter
determines the pH of a solution by measuring the voltage between the two electrodes that are placed in the solution
atom
(physics and chemistry) the smallest component of an element having the chemical properties of the element