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Acids and Bases
Properties of Acids:
Properties of ACIDS: 1. tastes sour
Properties of ACIDS: 1. tastes sour 2. reacts with metals
Properties of ACIDS: 1. tastes sour 2. reacts with metals 3. Turns blue litmus paper -- pink
Properties of ACIDS: 1. tastes sour 2. reacts with metals 3. Turns blue litmus paper -- pink 4. Produces hydrogen ions when mixed with water
Properties of Bases:
Properties of BASES: 1. tastes bitter
Properties of bases: 1. tastes bitter 2. Feels slippery
Properties of bases: 1. tastes bitter 2. Feels slippery 3. turns pink litmus paper blue
Properties of bases: 1. tastes bitter 2. Feels slippery 3. turns pink litmus paper blue 4. Produces hydroxide (OH - ) ions when mixed with water
Some people think that acids and bases are opposites.
indicator – substance which changes color when it touches an acid or a base
example: litmus paper
example: litmus paper pH paper
We need a way to tell if acids or bases are strong or.
pH scale: --tells the concentration of hydrogen ions in a substance
pH scale: --tells the concentration of hydrogen ions in a substance --tells how acidic or basic a substance is
pH scale: --goes from 0 to 14
pH scale: --goes from 0 to 14 --acids have pH = 0 - almost 7 --bases have pH = over 7 - 14
pH scale: --goes from 0 to 14 --acids have pH = 0 - almost 7 --bases have pH = over 7 – 14 --Water is and has a pH =.
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Acids and Bases. Properties of Acids þ Produce H + (hydrogen) ions in water þ Taste sour þ Corrode metals þ React with bases to form a salt and water.
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The pH Scale Is a substance an acid or a base? Acid Properties Donate H + ions Taste sour React with certain metals to produce hydrogen gas React with.
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