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A2 CHEMISTRY > RPA definitions > Flashcards

Flashcards in RPA definitions Deck (13):
1

Addition reaction

One in which a reactant is added to an unsaturated molecule to make a saturated molecule

2

Reflux

The continual boiling and condensing of a reaction mixture to ensure that the reaction takes place without the contents of the flask boiling dry

3

Esterification

Reaction of alcohol w. carboxylic acid to make ester and water

4

Hydrolysis

Reaction with water or OH- ions that breaks a chemical compound into two compounds

5

Peptide

A compound made of amino acids linked by peptide bonds

6

Zwitterion

A dipolar ionic form of an amino acid that is formed by the donation of a hydrogen ion from the carboxyl group to the amino group. Because both charges are present, there is no overall charge

7

Stereoisomers

Species with the same structural formula but with a different arrangement of the atoms in space

8

Chiral carbon

A carbon atom attached to four different atoms or group of atoms

9

Optical isomers

Stereoisomers that are non-superimposable mirror images of each other

10

Biodegradable polymer

A polymer that breaks down completely into CO2 and water

11

Degradable polymer

A polymer that breaks down into smaller fragments when exposed to heat, light or moisture

12

Pharmacological activity

The beneficial or adverse effects of a drug on living matter

13

Adsorption

The process by which a solid holds molecules of a gas or liquid or solute as a thin film on the surface of a solid or rarely, a liquid