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Chemistry > Mock Yr 10 > Flashcards

Mock Yr 10 Flashcards

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1
Q

What 2 things do ionic bonding

A

A metal and a non metal

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2
Q

What happens to the metals electrons in ionic bonding

A

The metal loses electrons

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3
Q

What is a covalent bond

A

A pair of electrons shared between 2 atoms

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4
Q

What is different about metallic bonding

A

The sea of delocalised electrons

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5
Q

Why are metals malleable

A

The layers of metal can slide over each other

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6
Q

2 properties of giant covalent structures

A

Very high melting and boiling points
Or
Don’t contain charged particles
Or
Aren’t soluble

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7
Q

What happens to mass in a chemical reaction

A

It’s conserved

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8
Q

What’s the top little number on the periodic table

A

Relative atomic mass

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9
Q

What’s the bottom little number in the periodic table

A

Atomic number

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10
Q

The formula for concentration

A

Concentration = mass of solute
—————————
Volume of solution

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11
Q

What is needed for reactions to take place

A

SUCCESSFUL collisions

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12
Q

What colour does lithium give when burning

A

Crimson red

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13
Q

What colour does sodium give when burning

A

Yellow

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14
Q

What colour does pottasium give when burning

A

Lilac

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15
Q

What colour does calcium give when burning

A

Orange-red

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16
Q

What colour does copper give when burning

A

Blue-green

17
Q

What colour precipitate forms when aluminium mixes with NaOH

A

White at first but then it goes colourless in excess of NaOH

18
Q

What colour precipitate forms when calcium is mixed with NaOH

A

White

19
Q

Copper + NaOH

A

Blue precipitate

20
Q

Iron(II) + NaOH

A

Green precipitate

21
Q

Iron(III) + NaOH

A

Brown precipitate

22
Q

What’s the test for halide ions

A

Add dilute nitric acid followed by some drops of silver nitrate solution

23
Q

What colour is chloride when used in a halide test

A

White precipitate

24
Q

What colour is bromide when used in a halide test

A

Cream precipitate

25
Q

What colour is iodide when used in a halide test

A

Yellow precipitate

26
Q

What 2 types of thing covalently bond

A

2 non-metals

27
Q

On the periodic table what does the atomic number equal

A

The number of protons or electrons

28
Q

What tells you how many neutrons an atom has in the periodic table

A

Mass number - Atomic number

Chemistry (2 decks)

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