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25 Cards in this Set
- Front
- Back
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pH scale
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A number scale for measuring how acidic or basic a solution is.
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bases
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Chemical compounds containing hydroxide that produce a solution with a pH of more than 7 when dissolved in water, produce a salt and water when they react with ionic compounds containing positive hydrogen ions. |
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neutral
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Neither acidic nor basic: describes a solution with a pH of 7 |
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corrosive |
biting; describes some acids and bases that can burn or eat away many materials, such as metals and human tissue.
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pH indicators |
Chemicals that change colour depending on the pH if the solution they are placed in. |
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litmus paper |
Thin paper strips coated with litmus and used as an acid-base indicator, turning one colour when added to a base, and a different colour when added to an acid. Litmus is a compound extracted from various lichens. |
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phenolphthalein |
A chemical compound that is colourless in acidic or slightly basic solutions but turns pink in moderately basic to highly basic solutions. |
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bromothymol blue |
An acid-base indicator named after its colour change from yellow to blue over a pH range of 6.0 to 7.6.
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indigo carmine |
an acid-base indicator named after its colour change from blue to yellow over a pH range of 11.2 to 13.0. |
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methyl orange |
An acid-base indicator named after its colour change from red to yellow over a pH range of 3.2 to 4.4. |
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methyl red |
An acid-base indicator named after its colour change from red to yellow over a pH range of 4.8 to 6.0. |
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caustic |
harsh; describes solutions made from highly reactive bases, such as drain cleaner and oven cleaner.
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hydroxide ions |
Negative ions of OH~~; can be produced when bases are dissolved in solution.
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hydrogen ions |
Electrically charged hydrogen atoms can be produced when acids are dissolved in solution. |
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concentration |
The amount of substance dissolved in a given volume of solution - for example, the number of hydrogen ions in a specific volume of solution.
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neutralization |
The chemical reaction that occurs when an acid and a base react to form a salt and water.
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metal oxide |
A compound containing a metal chemically combined with oxygen. |
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non-metal oxide |
A chemical compound that contains a non-metal chemically combined with oxygen.
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organic |
Refers to almost all carbon-containing compounds; exceptions include carbon dioxide, carbon monoxide and ionic carbonates.
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inorganic |
Refers to compounds that generally do not contain carbon; the few exceptions include carbon dioxide, carbon monoxide, and ionic carbonates.
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organic chemistry |
The study of compounds that contain carbon
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alcohol |
One kind of organic compound that contains C,H, and O, such as methanol and ethanol.
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hydrocarbon |
An organic compound that contains only the elements carbon and hydrogen. |
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Solvent
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A liquid that can dissolve other substances.
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Salts
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A class of ironic compounds that can be formed during the reaction of an acid and a base.
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