Combustion

Question 1

What is a fuel

Answer 1

A fuel is a chemical substance from which stored energy can be transferred usefully to make things happen

Question 2

We can model the reaction in a fuel cell by using a word equation, give one example of a word equation

Answer 2

Hydrogen+ oxygen = water or h2o or hydrogen oxide

Question 3

Define a reactant and a product

Answer 3

Reactant are the substances that react together in a reaction and products are the substances that are formed

Question 4

What is a fossil fuel give an example

Answer 4

A fossil fuel is produced from oil and were produced millions of years ago. An example is coal

Question 5

What is the test for carbon dioxide?

Answer 5

Bubble lime water if it goes a cloudy, misty colour then it contains carbon dioxide

Question 6

What is oxidation?

Answer 6

Something that we mix with oxygen makes a compound called… for example hydrogen oxide .this process is called oxidation

Question 7

What is phlogiston and its theory

Answer 7

Until 1772 many scientists thought that substances contain something called phlogiston when the substance burn the escaped leading a solid ash called calx this Siri explained why the maths afterburning fuels was less than the original mass

Question 8

What is combustion?

Answer 8

Combustion is a scientific name for burning

Question 9

Three factors allow combustion to continue and all these are shown in the fire triangle name the three factors in the fire triangle…

Answer 9

Oxygen ,heat and fuel

Question 10

Substances that are particularly likely to cause fires are labelled with the hazard symbol to show why they are dangerous name the three hazard symbols and their meanings

Answer 10

Fire- flammable - easy to catch fire
Ring with flames- oxidising- realising oxygen
Smashed material- explosive- contains enough stored energy to explode if not handled correctly

Question 11

True or false carbon monoxide is poisonous and can kill

Answer 11

True

Question 12

What two acidic gases can cause acid rain

Answer 12

Sulphur dioxide it and nitrogen oxide

Question 13

What can soot particles lead to?

Answer 13

Lung problems or asthma

Question 14

which main gas is linked to global warming and climate change?

Answer 14

Carbon dioxide

Question 15

In most vehicles how can gases be filtered to be less harmful to the environment and help prevent pollution

Answer 15

With a catalectic converter

Question 16

Most of the energy that causes the earths surface to warm up is transferred to the earth from the sun some of the energy is trapped with in the earth’s atmosphere by what gas.

Answer 16

Greenhouse gases

Question 17

True or false is some energy is reflected back into space once it has hit the earth’s atmosphere

Answer 17

True

Question 18

We can model the reaction in a fuel cell by using a word equation, give one example of a word equation

Answer 18

Hydrogen+ oxygen = water or h2o or hydrogen oxide

Question 19

Define a reactant and a product

Answer 19

Reactant are the substances that react together in a reaction and products are the substances that are formed

Question 20

What is a fossil fuel give an example

Answer 20

A fossil fuel is produced from oil and were produced millions of years ago. An example is coal

Question 21

What is the test for carbon dioxide?

Answer 21

Bubble lime water if it goes a cloudy, misty colour then it contains carbon dioxide

Question 22

What is oxidation?

Answer 22

Something that we mix with oxygen makes a compound called… for example hydrogen oxide .this process is called oxidation

Question 23

What is phlogiston and its theory

Answer 23

Until 1772 many scientists thought that substances contain something called phlogiston when the substance burn the escaped leading a solid ash called calx this Siri explained why the maths afterburning fuels was less than the original mass

Question 24

What is combustion?

Answer 24

Combustion is a scientific name for burning

Question 25

Three factors allow combustion to continue and all these are shown in the fire triangle name the three factors in the fire triangle…

Answer 25

Oxygen ,heat and fuel

Question 26

Substances that are particularly likely to cause fires are labelled with the hazard symbol to show why they are dangerous name the three hazard symbols and their meanings

Answer 26

Fire- flammable - easy to catch fire
Ring with flames- oxidising- realising oxygen
Smashed material- explosive- contains enough stored energy to explode if not handled correctly

Question 27

True or false carbon monoxide is poisonous and can kill

Answer 27

True

Question 28

What two acidic gases can cause acid rain

Answer 28

Sulphur dioxide it and nitrogen oxide

Question 29

What can soot particles lead to?

Answer 29

Lung problems or asthma

Question 30

which main gas is linked to global warming and climate change?

Answer 30

Carbon dioxide

Question 31

In most vehicles how can gases be filtered to be less harmful to the environment and help prevent pollution

Answer 31

With a catalectic converter

Question 32

Most of the energy that causes the earths surface to warm up is transferred to the earth from the sun some of the energy is trapped with in the earth’s atmosphere by what gas.

Answer 32

Greenhouse gases

Question 33

True or false is some energy is reflected back into space once it has hit the earth’s atmosphere

Answer 33

True