Acids And Bases
Published on Nov 19, 2015
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PRESENTATION OUTLINE
* Acids: When mixed with bases, become less powerful; turn litmus paper red; have a sour taste; corrosive on metals.
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What are Bases?
A base is a compound that has a hydroxide ion connected to some other ion.
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What are acids?
Acids are compounds that have a hydrogen ion connected to some other ion.
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So what happens when they combine?
When acids combine with bases, a chemical reaction does occur, resulting in products very much different from the original reactant.
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How to tell if it's an acid or base?
pH scale:
Scale used to express the acidity or basicity of a substance.
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pH scales are usually litmus paper but electric pH readers do exist.
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How to use the scale:
*Acids range from 0-6, 0 is highly acidic and 6 is a weak acid.
*Bases range from 8-14, 14 is very strong and 8 is weak.
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7 is neutral; meaning it is neither an acid or base
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Examples of bases:
Soap
Coffee
Nicotine
Degenerate
Baking soda
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Examples of acids:
Egg whites
Vinegar
Most fruits
Urine
Wine
Yogurt
Photo by Joe Shlabotnik
Examples of Neutrals
Water
Blood (7.2)
Milk (6.5)
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