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Blue Litmus Paper

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Two types of compounds are acids and bases. An acid is chemically defined as a molecule that donates H+ ions. Acids have three main characteristics: they taste sour, they conduct electricity when added to water (though they are covalent), and they turn blue litmus paper red. Bases are chemically defined as molecules that accept H- ions. Bases taste bitter, are slippery to the touch when dissolved in water, and turn red litmus paper blue. Litmus is a type of compound called an indicator: a substance that turns one color in the presence of acids and another color in the presence of bases. This is the reason that the red litmus papers and the yellow indicator papers turned blue when they touched the Windex®, Ivory® soap, Tilex®, and Comet®- these

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