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The pH scale measures how acidic or basic an aqueous solution is, ranging from 0 (very acidic) to 14 (very basic), with 7 being neutral.
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A substance that donates hydrogen ions and has a pH less than 7 on the pH scale.
A substance that accepts hydrogen ions and has a pH greater than 7 on the pH scale.
Neutralization Reaction: This is when an acid and base react to form water and a salt, effectively neutralizing each other.