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Sagot :
Answer:
any substance that in water solution
is slippery to the touch, tastes bitter , changes the colour
of indicators (e.g., turns red litmus paper blue), reacts
with acids to form salts, and promotes certain chemical
reactions (base catalysis).
Answer:
Base, in chemistry, any substance that in water solution is slippery to the touch, tastes bitter, changes the colour of indicators (e.g., turns red litmus paper blue), reacts with acids to form salts, and promotes certain chemical reactions (base catalysis). Examples of bases are the hydroxides of the alkali and alkaline earth metals (sodium, calcium, etc.) and the water solutions of ammonia or its organic derivatives (amines). Such substances produce hydroxide ions (OH-) in water solutions (see Arrhenius theory).
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