C3: Oxidation, Reduction, Thermal Decomposition Flashcards

You may prefer our related Brainscape-certified flashcards:
1
Q

What is oxidation?

A

A gain of oxygen.

During combustion both carbon and hydrogen atoms are oxidised.

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

Which elements tend to be found in fossil fuels?

A

Carbon

Hydrogen

Sulfur

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

What gas is made when sulfur in fossil fuels burns?

Describe what it is like.

A

Sulfur dioxide.

It is acidic gas and toxic.

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

Incomplete combustion

A

When there is a lack of oxygen.

Carbon monoxide is formed. (CO)

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

Carbon monoxide is…

A

…….a toxic gas.

It is colourless and odourless. It attaches to red blood cells and prevents oxygen from being carried.

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

What gases cause acid rain?

A

Sulfur dioxide

Nitrogen oxides

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

What are particulates?

A

Tiny solid particles containing soot (carbon) and unburnt fuels.

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

What is oxidation?

A

Lots of common metals, like iron and aluminium, react with oxygen to form oxides.

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

What element is used to reduce the oxides of iron and copper to make the metals

A

Carbon removes oxygen from the compound.

It is a reducing agent.

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

Reduction is………

A

….the loss of oxygen

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

What do we call it when one compound is heated to produce 2 products?

A

Thermal decomposition.

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

How do we know that the following reaction is a thermal decomposition reaction?

Hydrogen peroxide –> Water + Oxygen

A

Because one compound is breaking down to produce 2 products.

Hydrogen peroxide –> Water + Oxygen

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

Copper carbonate (+ heat) –> ?

A

Copper carbonate (+ heat) –> Copper oxide + Carbon Dioxide

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

Copper carbonate + heat –> Copper oxide + Carbon Dioxide

What is the reactant(s) in this reaction?

A

Copper carbonate

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

Copper carbonate + heat –> Copper oxide + Carbon Dioxide

How could we test that this gas given off in this reaction is carbon dioxide?

A

Bubble the gas through lime water

If it turns cloudy the gas is carbon dioxide

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