A to C

Question 1

Acid

Answer 1

Species that releases H+ ions into aqueous solution.

Question 2

Activation Energy (Ea)

Answer 2

Minimum energy required to start a reaction by the breaking of bonds.

Question 3

Actual Yield

Answer 3

Amount of product obtained from a reaction.

Question 4

Addition Polymerisation

Answer 4

Formation of a long molecular chain (addition polymer) by repeated addition reactions of many unsaturated alkene molecules (monomers).

Question 5

Addition Reaction

Answer 5

A reaction in which a reactant is added to an unsaturated molecule to make a none saturated molecule.

Question 6

Adsorption

Answer 6

The process that occurs when a gas or liquid or solute is held to the surface of a solid.

Question 7

Alicyclic

Answer 7

Containing carbon atoms joined together in a ring that is not aromatic.

Question 8

Aliphatic

Answer 8

Containing carbon atoms joined together in unbranched (straight) or branched chains.

Question 9

Alkali

Answer 9

Type of base that dissolves in water that releases OH- (aq)/hydroxide ions.

Question 10

Alkanes

Answer 10

The hydrocarbon homologous series with the general formula CnH2n+2.

Question 11

Alkenes

Answer 11

The hydrocarbon homologous series with one double carbon-to-carbon bond with the general formula CnH2n.

Question 12

Alkyl Group

Answer 12

A side chain formed by removing a hydrogen atom removed from an alkane parent chain.

Question 13

Alkyne

Answer 13

The hydrocarbon homologous series with one triple carbon-to-carbon bond and the general formula CnH2n-2.

Question 14

Amount of Substance (n)

Answer 14

The mole, used for counting atoms.

Question 15

Anhydrous

Answer 15

Containing no water molecules.

Question 16

Anion

Answer 16

Negatively charged ion with more electrons than protons.

Question 17

Aromatic

Answer 17

Containing one or more benzene rings.

Question 18

Atom Economy

Answer 18

(Sum of molar masses of desired products/Sum of molar masses of all products) x100

Question 19

Atomic Number (Z)

Answer 19

The number of protons in the nucleus of an atom (also proton number).

Question 20

Atomic Orbital

Answer 20

A region around the nucleus that can hold up to two electrons, with opposite spins.

Question 21

Average Bond Enthalpy

Answer 21

Average enthalpy change that takes place when breaking by homolytic fission one mole of a given type of bond in the molecules of a gaseous species.

Question 22

Avogrado Constant (Na)

Answer 22

6.02x10^23 per mole, the number of atoms per mole of carbon-12.

Question 23

Avogadros Hypothesis

Answer 23

Equal volumes of gases at the same temperature and pressure contain the same number of molecules.

Question 24

Base

Answer 24

Compound that neutralises an acid to form a salt.

Question 25

Binary Compound

Answer 25

Compound containing two elements only.

Question 26

Bond Angle

Answer 26

Angle between two bonds of an atom.

Question 27

Bonded Pair

Answer 27

A pair of electrons shared between two atoms to make a covalent bond.

Question 28

Carbocation

Answer 28

Ion that contains a positively charged carbon atom.