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further maths > C2 > Flashcards

C2 Flashcards

1
Q

What is an example of Giant structures?

A

diamond, silicon dioxide

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2
Q

What are the properties of giant structures?

A

They have high melting and boiling points due to strong bonds

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3
Q

What do ionic bonds form between?

A

metal and non-metal

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4
Q

What the structure of an ionic bond?

A

giant lattice structure

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5
Q

Do ionic bonds conduct electricity?

A

dont conduct as solids but do if molten

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6
Q

What are the properties of ionic bonds?

A

high melting and boiling points and strong bonds

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7
Q

What do covalent bonds form between?

A

non-metals

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8
Q

What is the structure of covalent bonds?

A

giant or molecular

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9
Q

What are the differences between giant and molecular covalent compounds?

A

Giant have a high melting and boiling points due to strong electrostatic forces. molecular have low melting and boiling points due to there weak intermolecular forces.

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10
Q

Do covalent bonds conduct electricity?

A

No because they have no mobile electrons

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11
Q

What do metallic bonds form between?

A

metals

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12
Q

Why is there an electrostatic attraction in metallic bonds?

A

positive metal ion and negative sea of electrons

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13
Q

What is the structure of metallic bonds?

A

always giant

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14
Q

What are the properties of metallic bonds?

A

high melting and boiling points

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15
Q

do metallic bonds conduct electricity?

A

yes due to mobile electrons

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16
Q

bonus property of metal bonds?

A

malleable due to layers of ions sliding

17
Q

what charge is metals usally?

A

posative

18
Q

Wat charge is a non-metal usally?

A

negative

19
Q

What is an alloy?

A

mixture of two or more elements in which one has to be an element

20
Q

Whats happens to electrons in a covalent bonds?

A

Shares Elctrons

21
Q

What happens to electrons in ionic bonds?

A

losses or gains an electron

22
Q

Do giant covalent structures have intermolecular forces

A

no

23
Q

What type of bond shares electrons

A

covalent

24
Q

What type of bonds gains or losses an electron

A

ionic

25
Q

Do polymers have intermolecular forces

A

yes

26
Q

do polymers have high melting and boiling points?

A

yes

27
Q

which bond gains or losses electrons?

A

ionic

28
Q

What are the four state symbols?

A

(s) for solid, (l) for liquid, (g) is for gas and (aq) for aqueous solution

29
Q

What is an aqueous solution?

A

a substance where the solvent is water

30
Q

What is an allotrope?

A

properties of some chemical elements to exist in two or more different forms, in the same physical state. eg diamond, coal, graphite are all allotropes of carbon

31
Q

what is fullerene?

A

A fullerene is an allotrope of carbon whose molecules consist of carbon atoms connected by single and double bonds so as to form a closed or partially closed mesh

32
Q

Give some uses for nanoparticles

A

medicines, electronics, bioengineering,

further maths (7 decks)

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