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😎 Year 9 Chemistry 😎 🩵 > Elements Compounds And Mixtures > Flashcards

Elements Compounds And Mixtures Flashcards

1
Q

What is an Element

A

An element is a substance that consists of only one type of atom and it cannot be broken down into anything simpler by chemical means

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2
Q

What is an Atom?

A

An atom is the simplest particle of an element that can exist on its own in a stable environment

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3
Q

What is a Molecule?

A

A molecule is a particle that has 2 or more atoms chemically joined together.

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4
Q

What is a Period?

A

A period is a horizontal row in the periodic table

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5
Q

What is a Group ?

A

A group is a vertical column in the periodic table.

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6
Q

What does Malleable mean?

A

Malleable means can be hammered into shape

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7
Q

What does Ductile mean?

A

Ductile means can be drawn into wires.

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8
Q

The periodic table is split into ……… and …… ……….?

A

Metals and non metals

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9
Q

What is a Compound?

A

A compound is a substance formed when 2 or more different elements are chemically combined.

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10
Q

what is a Mixture ?

A

A mixture is 2 or more substances mixed together which are usually easy to separate

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11
Q

What are the properties of metals ?

A

hard,
conduct electricity and heat,
high density,
high lustre,
malleable,
high melting point,
High boiling point,

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12
Q

What side are the metals on ?

A

The left side of the periodic table

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13
Q

What are the properties of non metals?

A

Brittle, do not conduct electricity, dull, gas liquid or solid at room temperature.

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14
Q

What does magnesium look like before , during and after it burns?

A

Before: grey shiny
During: bright white light
After: white ash

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15
Q

Name 5 elements

A

Hydrogen
Helium
Lithium
Magnesium
Boron
Carbon
Silver
Gold
Nitrogen
Oxygen

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16
Q

Is hydrogen a metal or not ?

A

Hydrogen (H) is a non metal

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17
Q

Where does the table split?

A

At Al (aluminium)

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18
Q

Name some solid elements

A

Magnesium, aluminium, silicon, phosphorus, lead, gold, silver

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19
Q

Name some gasses on the periodic table

A

Hydrogen, helium, nitrogen, oxygen, argon, radon , neon, krypton.

20
Q

Name some liquids on the periodic table of elements

A

Bromine, mercury

21
Q

Magnesium+ nitrogen

A

Magnesium nitride

22
Q

Nickel + iodine

A

Nickel iodide

23
Q

Magnesium+ nitrogen + oxygen

A

Magnesium nitrate

24
Q

Calcium+ carbon+ oxygen

A

Calcium carbonate

25
Q

Lithium + nitrogen

A

Lithium nitride

26
Q

Sodium + nitrogen+ oxygen

A

Sodium nitrate

27
Q

Tin + oxygen

A

Tin oxide

28
Q

When do you use -ide

A

When there’s 2 elements

29
Q

When do you use -ate

A

When there’s 3 elements including oxygen

30
Q

Which elements make magnesium oxide

A

Magnesium and oxygen

31
Q

How do you make magnesium oxide

A

Burn magnesium in air.

32
Q

Which elements make iron sulfide?

A

Iron and sulfur

33
Q

How do you make iron sulfide?

A

Heat a mixture of iron and sulfur. Iron is dark grey and sulfur is a yellow powder. The mixture glows and the sulfur burns with a blue flame.

34
Q

Word equation for iron sulfide

A

Iron+ sulfur= iron sulfide

35
Q

What does iron look like

A

Grey shiny solid

36
Q

What does sulfur look like

A

Yellow dull powder

37
Q

What does iron sulfide mixture look like

A

Grey flecks with yellow flecks

38
Q

What does iron sulfide look like

A

Grey solid, not shiny

39
Q

Are these magnetic
A. Iron
B. Sulfur
C. Iron sulfur mixture
D. Iron sulfide

A

A. Yes
B. No
C. Iron is but sulfur isn’t
D. No

40
Q

Are these soluble in xylene
A. Iron
B. Sulfur
C. Iron sulfur mixture
D. Iron sulfide

A

A. Insoluble
B. Soluble
C. Iron insoluble but sulfur soluble
D. Insoluble

41
Q

What do these look like with acid?
A. Iron
B. Sulfur
C. Iron sulfur mixture
D. Iron sulfide

A

A. Bubbles
B. No reaction
C. Bubbles
D. Rotten eggs smell

42
Q

Do all elements have the same properties

A

No, Different elements have difterent properties. In a mixture the elements behave as if they were on their own. A compound is a new material that has its own properties.

43
Q

Tell me about the compound of water

A

Compound is a liquid. Made of hydrogen and oxygen.

44
Q

Tell me about the compound of carbon dioxide

A

It’s a gas. Made of carbon and oxygen

45
Q

Tell me about the compound of sodium chloride

A

It’s a solid. Made of sodium and chlorine.

46
Q

Can you lays predict how a compound will turn out

A

No, you can’t predict the properties of a compound by looking at the properties of the elements that are used to make it.

E.g. hydrogen and oxygen are both gases but together make a liquid

😎 Year 9 Chemistry 😎 🩵 (5 decks)

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