Classification of matter

Question 1

Definition of matter?

Answer 1

Matter is anything that occupies space and has mass.

Question 2

Draw the diagram of matter:

Answer 2

Matter  
Mixtures or Pure substances.
(M) Homogeneous and Heterogeneous.
(PS) Elements or Compounds
(E) Metals and non-metals
(M) Magnetic and non-magnetic

Question 3

Mixtures can be … separated.

Pure substances can be … separated.

Answer 3

Mixtures can be physically separated.

Pure substances can be chemically separated.

Question 4

Definition of a substance?

Answer 4

Form of matter that has a constant composition and distinct properties.

Question 5

T/F: (In a mixture)

• At least two different substances where each one keeps it’s individual properties.
• The component substances can be physically separated.
• Substances are not chemically bonded to one another.

Answer 5

TRUE
TRUE
TRUE

Question 6

You can classify a mixture as either … or …

Answer 6

Homogenous

Heterogeneous

Question 7

In a homogeneous mixture:
... composition.
Also known as ...
Largest substance present ...
Smallest substance present ...
You ... see individual substances. 
Another name for homogenous?

Answer 7

Constant/Uniform
Solutions
Largest: Solvent
Smallest: Solute
Cannot
Miscible

Question 8

In a heterogenous mixture:
... composition.
Substances ... dissolve in another.
e.g. ... a solid in a liquid.
Another name for heterogenous?
    - What happens when you shake it?

Answer 8

Non-uniform
do not 
Suspension
Immiscible 
Emulsion

Question 9

What are four methods of separating mixtures? (Physical processes)

Answer 9

Heating - salt form brine
Magnets - iron fillings from sand
Separating funnel - two immiscible liquids
Fractional distillation - oxygen and nitrogen

Question 10

Pure substances: Consists of …

Can be broken down (classified ) into … and …

Answer 10

Only one type of substance

Element or Compound

Question 11

Element: T/F
Simplest pure substance.
Cannot be broken down more through chemical means.
The atom is the smallest particle that retains the properties of an element.

Answer 11

TRUE
TRUE
TRUE

Question 12

Compound: T/F
Can be separated into Organic and Inorganic.
Made up of two or more elements bonded together chemically.
Have a fixed chemical composition because they are bonded in a constant ratio.

Answer 12

TRUE
TRUE
TRUE

Question 13

What is the composition of:

An element vs a compound vs a mixture

Answer 13

Element: One type of atom
Compound: Constant composition
Mixture: Varying composition, two or more elements or compounds

Question 14

Properties of:

An element vs a compound vs a mixture

Answer 14

Element: Unique to each element
Compound: Differ from constituent elements.
Mixture: Same properties as the constituent elements.

Question 15

Separation of:

An element vs a compound vs a mixture

Answer 15

Element: Not possible
Compound: Chemically
Mixture: Physically

Question 16

Diagram of:

An element vs a compound vs a mixture

Answer 16

Element: o o o
Compound: o/o o/o o/o
Mixture: o / o / / o / o

Question 17

Names of Heterogeneous mixtures:
liquid-liquid
solid-liquid
gas-liquid
gas-solid

Answer 17

emulsion
suspension
aerosol
smoke

Question 18

When do we use prefixes to name compounds?

Answer 18

When it's two nonmetals:
1 - Mono
2 - Di
3 - Tri
4 - Tetra
5 - Penta

Question 19

What happens when a metal bonds with a nonmetal to form a compound.

Answer 19

It forms an ionic bond.
Metal gives electrons, becomes positive (cation)
Non-metal takes electrons, becomes negative (anion)

Question 20

Properties of Metals:
Thermal conductors: ?
Electrical conductors: ?
Malleable and ductile: ?
High melting point and high density. 
Has magnetic properties.

Answer 20

Learn BTW!
Thermal conductors: Allows heat to pass through.
Electrical conductors: Allows electricity to pass through.
Malleable and ductile: Can easily bend and stretch.

Question 21

What are the properties of Non-metals: (3)

Answer 21

Bad thermal conductors.
Good electrical insulators.
Not malleable and ductile.

Question 22

What are the properties of Semi-metals:

Answer 22

Semi-conductivity: When conductivity increases as temperature increase.