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carbonic acid

the acid, H 2 CO 3 , formed when carbon dioxide dissolves in water, known in the form of its salts and esters, the carbonates.
Origin of carbonic acid
1785-95 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for carbonic acid
  • carbonic acid is especially effective at dissolving limestone.
  • Dissolved in the ocean, it forms carbonic acid which dissolved the calcium shells of oxygen producing phytoplankton.
  • When sodium hydroxide combines with carbonic acid, they create sodium carbonate.
  • Rainwater is acidic due mainly to the presence of carbonic acid-a common culprit for lowering the pH of water.
  • Dissociation of carbonic acid into bicarbonate ions and protons.
  • The main acid responsible for the formation of cave decorations is called carbonic acid.
British Dictionary definitions for carbonic acid

carbonic acid

a weak acid formed when carbon dioxide combines with water: obtained only in aqueous solutions, never in the pure state. Formula: H2CO3
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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carbonic acid in Science
carbonic acid
A weak, unstable acid present in solutions of carbon dioxide in water. It gives carbonated beverages their sharp taste. Chemical formula: H2CO3.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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