GA| Monikko | acids |
| Komparatiivi | more acid |
| Superlatiivi | most acid |
| Superlatiivi | acidest |
| Komparatiivi | acider |
Any compound which yields H+ ions (protons) when dissolved in water; an Arrhenius acid.
Acetic acid, a weak acid, donates a proton (hydrogen ion, highlighted in green) to water in an equilibrium reaction to give the acetate ion and the hydronium ion. Red: oxygen, black: carbon, white: hydrogen.
Any compound that easily donates protons to a base; a Brønsted acid.
Hydrochloric acid (in beaker) reacting with ammonia fumes to produce ammonium chloride (white smoke)
Any compound that can accept a pair of electrons to form a covalent bond; a Lewis acid.
comparison of Lewis and Brønsted acid-base rxns
(uncountable, slang) LSD, lysergic acid diethylamide.
Table from the 2010 ISCD study ranking various drugs (legal and illegal) based on statements by drug-harm experts. LSD was found to be the 18th most dangerous out of 20 considered.