Definitions

Question 1

Element

Answer 1

Pure substance made up of only one type of atom

Question 2

Compound

Answer 2

Pure substance made up of two or more different types of atoms chemically bonded

Question 3

Mixture

Answer 3

2 or more different substances that are not chemically bonded and can be separated by physical means

Question 4

Molecule

Answer 4

2 or more atoms covalently bonded

Question 5

Monatomic molecule

Answer 5

A molecule consisting of only one atom-noble gases

Question 6

Diatomic molecule

Answer 6

A molecule consisting of only two atoms of the same type

Question 7

Ionic bond

Answer 7

The electrostatic attraction between oppositely charged ions

Question 8

Covalent bond

Answer 8

The electrostatic attraction between shared pair of electrons and the nuclei of bonded atoms 

Question 9

Solute

Answer 9

A substance that is dissolved by a solvent to form a solution

Question 10

Solvent

Answer 10

The liquid in which a solute is dissolved in to form a solution. E.g. water

Question 11

Solution

Answer 11

A mixture of solute dissolved in a solvent

Question 12

Saturated

Answer 12

The description for a solution when no more solute will dissolve in a solvent at a specific temperature

Question 13

Filtrate

Answer 13

The liquid/solution that passed through the filter paper in filtration

Question 14

Residue

Answer 14

The insoluble solid left behind after filtration

Question 15

Homologous series

Answer 15

A group of organic molecules with the same function group and general formula

Question 16

Hydrocarbon

Answer 16

Molecules made up of hydrogen and carbon atoms only

Question 17

Saturated - organic chemistry

Answer 17

Molecules containing single bonds only

Question 18

Unsaturated

Answer 18

Molecules containing carbon to carbon double bonds

Question 19

Alkane

Answer 19

A homologous series of hydrocarbons with the general formula of CnH2n+2

Question 20

Alkene

Answer 20

A homologous series of hydrocarbons with the general formula of CnH2n