Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Science > Matter > Flashcards

Matter Flashcards

1
Q

What is a pure substance?

A

They are made up of only one type of particle (eg. Elements and compounds). They can be separated by chemical means

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What are impure substances?

A

Made up of different types of particles (eg mixtures). They can be separated by physical means

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What are examples of chemical separation?

A

Heat, light and electricity

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What are examples of physical separation?

A

Sporting, distillation, magnets, evaporation, filtration,separating funnels.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What is the difference between miscible and immiscible liquids?

A

A miscible liquid can dissolve readily in some other liquid, whereas an immiscible liquids do not dissolve in other liquids.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What is the difference between soluble and insoluble?

A

Soluble solids are those solids ( solute ) which when mixed with the right liquid (solvent), forms a solution. (eg. Salt and water). Insoluble solids are those solids which do not dissolve in water.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What is a metal alloy?

A

A mixture of metals (homogenous) eg. Brass, bronze or steel

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Relate a table explaining the difference between an element, compound and mixture?

A

In book

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What are the characteristics of metals?

A

Metals have luster (shiny), silver in colour (besides gold and copper),ductile(wires), malleable (flat sheets) and are good conductors of heat and electricity

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What are characteristics of non metals?

A

Different colours, brittle, good insulators and dull.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What are salts?

A

A compound formed when acids react with bases

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What are molecules?

A

They are comprised of two or more different or the same atoms chemically bonded together to form a new unit

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What are samples of diatomic elements?

A

They take on a linear shape. Eg. hydrogen, oxygen chlorine)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What is the only triatomic element with a linear shape?

A

CO2 (carbon dioxide)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What are the only 2 liquid elements at room temperature?

A

Mercury and Bromine

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Why are noble gases called noble gases?

A

Because they do not react with any other elements to form compounds. They are unreactive.

17
Q

What are the 2 semi metals (or metalloids)?

A

Silicon and Boron.

18
Q

What are the rows called in a periodic table?

A

Periods

19
Q

What are the columns called in a periodic table?

A

Groups

20
Q

Which element is the lightest?

A

Hydrogen

21
Q

What is a positively charged ion called

A

Cation

22
Q

What is a charged particle called?

A

Ion

23
Q

What is the name of a negatively charged ion called?

A

Anion

24
Q

What must silver always be assumed to have?

A

An oxidation number of 1+

25
Q

What are the 5 complex ions you need to know?

A 
Ammonium ion
Hydroxide ion
Nitrate ion
Sulphate ion 
Carbonate ion
26
Q

What is a chemical reaction?

A

When atoms join together or when they decompose by chemical means.

Science (4 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions