What substances are called bases? What groups are the grounds divided into?
| April 13, 2021 | education
A base is a substance that, in aqueous solution, is slippery to the touch, tastes bitter, changes the color of indicators (for example, turns red litmus paper into blue), reacts with acids to form salts and promotes certain chemical reactions (basic catalysis). Examples of bases are hydroxides of alkali and alkaline earth metals (sodium, calcium, etc.) and aqueous solutions of ammonia or its organic derivatives (amines). Such substances produce hydroxide ions (OH-) in aqueous solutions.
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