Core Test Halloween Topic 2 Yr 9 2023 Elements,compounds And Mixtures

Question 1

Atoms of an element

Answer 1

Atoms is the smallest particle of an chemical element that can exist

Question 2

Molecules of an element

Answer 2

A molecule is a particle that has two more atoms chemically joined together

Question 3

Element definition

Answer 3

Elements of materials that cannot be split up into anything simpler by chemical means they only contain one type of atom

Question 4

Elements of a compound

Answer 4

Compounds have completely different properties from the elements are used to make them a compound is a material that has two more different elements chemically joined together

Question 5

Mixtures

Answer 5

A mixture is two substances mixed together, which are usually easy to separate

Question 6

Metals properties

Answer 6

Hard conduct, electricity and heat, high density, high Luster, malleable, high, melting point , usually shiny

Question 7

Definition of malleable and ductile

Answer 7

Malleable…
Means I can be hammered into place.
Ductile…
Means it can be drawn into wires

Question 8

Nonmetals properties

Answer 8

Brittle, do not conduct, electricity, gas, liquid, or solid at room, temperature, have low boiling and melting points, dull

Question 9

Experiments calculations

Answer 9

Glows
Iron + sulfur = iron sulphate
Magnesium + oxygen = magnesium oxide