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Apologia Chem M 9
Acid-Base Chemistry
| Question | Answer |
|---|---|
| In general, ACIDS: | taste SOUR, are covalent compounds that conduct electricity when added to water, turn blue litmus paper red. |
| In general, BASES: | taste BITTER, are slippery to the touch when dissolved in water, turn red litmus paper blue. |
| an indicator | a substance that turns one color in the presence of acids & another color in the presence of bases |
| A molecule that DONATES protons of (H+) ions | Acid |
| A molecule that ACCEPTS protons of (H+) ions | Bases |
| amphiprotic compound (aka amphoteric) | compounds that can act as EITHER an acid or a base, depending on the situation |
| When IONIC compounds dissolve, | they SPLIT into their constituent parts. |
| An IONIC compound is made up of | at least 1 metal atom & at least 1 non-metal atom. |
| A COVALENT compound is made up of | solely NONMETAL atoms. |
| When determining which compound is which in an acid-base reaction, we first | examine the chemical equation and look for any ionic compounds. If they exist, we split them into their ions. |
| After we split an ionic compound into its ions, we then | see what molecule LOST an H+ ion and what molecule GAINED an H+ ion. |
| An ionic compound is IONIC and therefore | CANNOT be an acid. |
| Most of the ACIDS we have discussed have | an H atom as the very FIRST atom in their chemical formula. |
| We would expect HF | to be an acid. |
| We would expect RbOH | to be a base. |
| HCl | hydrochloric acid |
| HBr | hydrobromic acid |
| HF | hydrofluoric acid |
| HNO3 | nitric acid |
| H2SO4 | sulfuric acid |
| H3PO4 | phosphoric acid |
| H2CO3 | carbonic acid |
| C2H4O2 | acetic acid |
| polyprotic acid | an acid that can donate more than one H+ ion |
| triprotic acid | can donate 3 protons (H+ ions) |
| diprotic acid | can donate 2 protons (H+ ions) |
| Most chemists use the general term __________________ to refer to ionic compounds. | salt |
| neutralization reaction | when an acid and a base neutralize each other, producing water and a salt |