- published: 03 Aug 2016
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An acid (from the Latin acidus/acēre meaning sour) is a chemical substance whose aqueous solutions are characterized by a sour taste, the ability to turn blue litmus red, and the ability to react with bases and certain metals (like calcium) to form salts. An aqueous solution of an acid has a pH of less than 7 and is colloquially also referred to as 'acid' (as in 'dissolved in acid'), while the strict definition refers only to the solute. An acid usually contains a hydrogen atom bonded to a chemical structure that is still energetically favorable after loss of H+ (a positive hydrogen ion or proton). A lower pH means a higher acidity, and thus a higher concentration of positive hydrogen ions in the solution. Chemicals or substances having the property of an acid are said to be acidic.
There are three common definitions for acids: the Arrhenius definition, the Brønsted-Lowry definition, and the Lewis definition. The Arrhenius definition defines acids as substances which increase the concentration of hydrogen ions (H+), or more accurately, hydronium ions (H3O+), when dissolved in water. The Brønsted-Lowry definition is an expansion to include solvents other than water: an acid is a substance which can act as a proton donor. By this definition, any compound which can be deprotonated can be considered an acid. Examples include alcohols and amines which contain O-H or N-H fragments. A Lewis acid is a substance that can accept a pair of electrons to form a covalent bond. Examples of Lewis acids include all metal cations, and electron-deficient molecules such as boron trifluoride and aluminium trichloride.
Drop, DROP, drops or DROPS may refer to:
Act or ACT may mean:
Acts may mean:
What does it mean, what does anything mean
Sending out signals I see the smoke screens
What is not dirty, what is not clean
What should we not hear, what shouldn't be seen
Running off verbals like a runaway truck
Who censors the censor, can I do that myself
Make up my own mind like anyone else
Forget me, forget me not
Remember me like acid drops
Mind over morals, anything banned
The zealots are marching with Bible in hand
Keyed to the roof 100 proof
Some of them hairpins, some of them clams
Desperate Susans, desperate Dans
Who censors the censor, can I do that myself
Make up my own mind like anyone else
You read but missed my plot
You only see that what is not
These are clueless, living in fear
Scared of their own sex or anything clear
Still looking down proboscis crown
Vague hope and no charity-welcome to the 21st centuryThe hush puppy hushes, a dummy dumb struck
What is bad language, what shouldn't be heard
Or used as a token or used as a word
What is not dirty what is not clean
What is not filthy, what is obscene
Who censors the censor, can I do that myself
Make up my own mind like anyone else
Forget me forget me not
Remember me like acid drops
These different colours, different style
Different cultures-these blend in a while
Prejudice prods through a big picket fence
Divided we fall without a defense
The seat of easement, the privy parliament
Petticoat merchants bent on intent
There everywhere, these tricks of the trade
Some in the light, some in the shade