Unit 3 Flashcards

1
Q

Where are metals found on the periodic table

A

Left hand side

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2
Q

What are the properties of metals

A
Sonorous 
Shiny 
Conducts electricity and heat
Malleable
Ductile 
Strong
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3
Q

What is metallic bonding

A

Electrostatic force of attraction between positively charged ions and delocalised electrons

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4
Q

What happens when potassium is reacted with water

A

Purple flames , gassed, pops

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5
Q

What happens in a reaction wiry copper ans acid

A

Nothing- no reaction

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6
Q

How can salts be prepared

A

By reacting metals and acids

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7
Q

What gives a soluble salt

A

Adding excess metal to an acid and filtering the residue , will give a solution of a soluble salt

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8
Q

What happens to magnesium when reacted with oxygen

A

Bright white light

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9
Q

What is OIL RIG

A

Oxidation Is Loss of electrons

Reduction Is Gain of electrons

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10
Q

What is a redox reaction

A

When oxidation and reductions takes place

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11
Q

How do u make a redox equation

A

Add all the equations for oxidation and reduction together

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12
Q

What is copper extracted by

A

Carbon

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13
Q

What is electrolysis

A

Breaking down a compound using electrolysis day

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14
Q

Definition of ion bridge

A

The role of the ion bridge is to completely the circuit it needs to be absorbent

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15
Q

What is a fuel cell

A

An electrochemical cell that produce electricity by combing a fuel eg hydrogen , with oxygen withought burning it

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16
Q

What are advantages of the hydrogen fuel cells

A

The only waste product is water
Hydrogen is readily available
Oxygen comes from the air

17
Q

Definition of monomers

A

The simple molecules from which polymers are made

18
Q

Definition is polymer

A

a large molecule made by reacting many small molecules together (monomers)

19
Q

Definition of polymerisation

A

The reaction in which monomers join together to form polymers

20
Q

Properties of ammonia

A

Invisible gas
Pungent smell
Very soluble in water
Alkaline gas

21
Q

What is ammonia and nitric acid used for

A

To produce nitrates for fertilisers

22
Q

What process is ammonia made from for fertilisers

A

Haber process

23
Q

What makes ammonia , through the haber process

A

Nitrogen ans hydrogen and an iron catalyst

24
Q

What is produced from the Ostwald process

A

Nitric acid

25
What is used to make nitric acid
Ammonia , oxygen and water | Platinum catalyst is used
26
What does IHOP stand for
Iron -Haber | Ostwald- Platinum
27
Everyday objects that are radioactive
Rocks Beer Bananas Teeth caps
28
What are the types of radiation
Alpha Beta Gamma
29
What stops alpha from travelling
Can be stopped by your hand , and will only travel a few cm in the air
30
What stops beta from travelling
Beta will travel further than alpha and can be stopped by aluminium
31
What strips gamma rays from travelling
Travel far and will only be stopped by thick sheets of lead
32
What is alpha deflected away from
The positive , as it has a positive nucleus
33
What is beta deflected away from
The negative electrode Asia it is similar to an electron
34
Are gamma rays deflect of anything
No
35
What is an alpha particle identical to
The nucleus of a helium atom (which compares two protons ans two neutrons )
36
What does beta radiation consist of
High energy electrons emitted from the electron shells
37
What type is radiation is a gamma radiation
Very short wavelength-High frequency-electromagnetic radiation