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When you have finished this page, try the Acids and Bases Quiz.
Acids and bases are two groups of chemicals that have some things in common when they are dissolved in a liquid such as water.
Acids in water solutions show certain properties. They taste sour and turn litmus paper red. They react with metals like zinc to give off hydrogen.
Bases in water solutions also show certain properties or characteristics. They taste bitter and and turn litmus paper blue. They also have a slimey or slippery texture to them.
Acids |
Bases |
Tastes sour |
Tastes bitter |
Turns litmus paper red |
Turns litmus paper blue |
Reacts with some metals to give off hydrogen gas. |
Feels slimey or slippery to the touch. |
Inorganic Acids |
Organic Acids |
|
Hydrogen Chloride |
Citric Acid - found in lemons,
times, oranges, pineapples |
|
Hydrogen Sulfide - found
in decaying animals, volcanic ashes, some mineral water, unrefined fuels,such
as crude oil, coal, natural gases. |
Carbonic Acid - can be found
in carbonated drinks |
|
Phosphoric Acid |
Hydrogen Cyanide |
|
Sulfuric Acid
|
Salicylic Acid |
|
|
Lactic Acid - found in sour
milk, yogurt, cottage cheese |
|
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Tartaric Acid - found in
grapes |
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Inorganic Bases |
Organic Bases |
|
Calcium Carbonate - found
in calcite, aragonite |
Pyridine |
|
Calcium Hydroxide |
Ethalymine |
|
Sodium Bicarbonate - found
in baking soda |
|
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Sodium Carbonate - found
in seaweed ash |
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Sodium Hydroxide |
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