Page 352 - General Knowledge

GENERAL KNOWLEDGE 2019

 It is in sour taste.
 Double Replacement with solid oxides
 It turns rusting metals into salts.

 Double Replacement with hydroxides
 Neutralizes bases.
 Always forms a salt and water.
 Double Replacement with carbonates and bicarbonates
 Turns carbonates into salts and

 Antacids in your stomach to remove acid.
 Liberate ( ) from water in a redox reaction with a metal.
 This is a part of the activity series of metals.
Properties of Bases
-
 Produces OH in water.
 Turns litmus from red to blue.
 Slippery feeling and bitter taste.

 Neutralizes acidic solutions have always forms a salt and water.
 Breaks down fats and oils which is why many household cleaners are basic.
 It will produce soap from fats or oils if heated.
Properties of Salts
 Product of an acid-base reaction.
 Many are soluble.
 For this reason most drugs are a salt, most specifically sodium.
 This gets the drug into the bloodstream as all sodium compounds are soluble.
 If a drug cannot be turned into a salt it will not dissolve in water and is useless to a patient as
it will not enter the bloodstream.
 Salts of weak acid and bases are used to form buffers.
 Hydroscopic absorbs water very well to form hydrates.





 The list of strong acids includes:

Salts
 Salts are compounds composed of a metal and a non-metal.
 Normally, this is composed of one component from the left side of the periodic table and one
component from the right side.
 The left side of the table is filled with metal, metal atoms give up electrons and therefore
become positively charged ions. Positively charged ions are named cations.
 The right side of the periodic table, those elements to the right of the stair-steps formed by
the metalloids, are considered non-metals.
 Non-metal atoms gain electrons in ionic compounds and therefore become negatively
charged ions.
 Negatively charged ions are named anions.
The Bronsted-Lowry concept
 Acid: A substance that acts as a proton donor in chemical reactions.
 Base: A substance that acts as a proton acceptor in chemical reaction.

348 | P a g e shop.ssbcrack.com