Year 9 Topic 1

Question 1

The smallest part/particle of an element that can exist.

Answer 1

An Atom

Question 2

A substance of two or more atoms chemically bonded together.

Answer 2

A Molecule

Question 3

A substance of two or more different atoms chemically bonded.

Answer 3

A compound

Question 4

A substance made up of only one kind of Atom.

Answer 4

An element

Question 5

A negatively charged particle that has almost no mass. It can be found outside of the nucleus

Answer 5

An electron

Question 6

A subatomic particle with a relative mass of 1, a relative charge of +1 and is located in the nucleus of an atom.

Answer 6

A proton

Question 7

A subatomic particle with a relative mass of 1, a relative charge of 0 and is located in the nucleus of an atom.

Answer 7

A neutron

Question 8

The result of a solute dissolving into a liquid.
(Solvent)

Answer 8

Solution

Question 9

The liquid in which something dissolves.

Answer 9

Solvent

Question 10

The substance that dissolves.

Answer 10

Solute

Question 11

Where the quantities of reactants and products match.

Answer 11

Balanced chemical equation.

Question 12

The substance to the left of an arrow in a chemical equation.

Answer 12

Reactant.

Question 13

The substance to the right of a chemical equation.

Answer 13

Product

Question 14

Liquids that cannot mix together (eg. Oil and water)

Answer 14

Immiscible

Question 15

Liquids that can mix together (eg. Alcohol and water)

Answer 15

Miscible

Question 16

When a liquid gains energy and becomes a gas

Answer 16

Evaporation

Question 17

When a gas loses energy (gets colder) and becomes a liquid

Answer 17

Condensation

Question 18

The pure liquid obtained after distillation

Answer 18

Distillate

Question 19

The Temperature at which molecules evaporate at the fastest rate ( Liquid to gas)

Answer 19

Boiling point