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Bases are substances that produce hydroxide ions when they dissolve in water. Hydroxide ions are negatively charged and have the symbol OH -.

Properties of Bases

Most soaps are bases. Bases feel slippery to the touch. Bases taste bitter. Bases are corrosive. You should NEVER taste or touch a substance to test if it is basic.Basic solution like acids can conduct electricity but unlike acids, bases do not react with metals.

Uses of Bases

Bases give soap and other cleaning products their useful properties because the hydroxide ions interact strongly with grease and dirt. Antacid tablets, chalk, and oven cleaners also contain bases. Your blood is a basic solution.