Acid - A substance that donates hydrogen ions (H+) to a solution when dissolved in water, resulting in a decrease in pH., Base - A substance that accepts hydrogen ions (H+) from a solution when dissolved in water, resulting in an increase in pH., pH - A measure of the acidity or basicity of a solution, defined as the negative logarithm of the hydrogen ion concentration., Strong Acid - An acid that completely dissociates into its ions in water, resulting in a high concentration of hydrogen ions., Weak Acid - An acid that partially dissociates into its ions in water, resulting in a low concentration of hydrogen ions., Strong Base - A base that completely dissociates into its ions in water, resulting in a high concentration of hydroxide ions (OH-)., Weak Base - A base that partially dissociates into its ions in water, resulting in a low concentration of hydroxide ions (OH-)., Electrolyte - A solution that contains ions and conducts electricity. , Neutralization - A chemical reaction between an acid and a base that results in the formation of water and a salt., Indicator - A substance that changes color depending on the pH of the solution it is in, used to indicate the endpoint of a titration., Red - Litmus paper turns ___ in an acid., Blue - Litmus paper turns ___ in a base., Pink - phenolphthalein turns this color in a base. , Clear - phenolphthalein turns this color in an acid. ,

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