Combustion And Periodic Table

Question 1

What do you need to start a fire

Answer 1

Oxygen, heat and fuel

Question 2

What is combustion

Answer 2

Another word for burning

Question 3

What is an hydrocarbon

Answer 3

Hydrogen and carbon

Question 4

What happens when a fuel reacts with oxygen

Answer 4

Releases energy (light/heat)

Question 5

What is the word equation for combustion

Answer 5

Fuel + oxygen > carbon dioxide + water

Question 6

What are the reactants of combustion

Answer 6

Fuel and oxygen

Question 7

What are the products of combustion

Answer 7

Carbon dioxide and water

Question 8

Is combustion irreversible?

Answer 8

Yes

Question 9

What gases are there in the air

Answer 9

Nitrogen 78% oxygen 21% argon 1% carbon dioxide 0.04%

Question 10

What do metals produce when they react with oxygen

Answer 10

Oxide

Question 11

What is oxidation

Answer 11

When a substance (metal or non metal) reacts with oxygen to form an oxide

Question 12

Oxidation reaction

Answer 12

Copper + oxygen > copper oxide

Question 13

What is an independent variable

Answer 13

What we change

Question 14

What is a dependent variable

Answer 14

What we measure

Question 15

What is a control variable

Answer 15

What we keep the same

Question 16

Where are the noble gases on the periodic table

Answer 16

Group 8/0

Question 17

Where are the alkali metals on the periodic table

Answer 17

Group 1

Question 18

Do alkali metals get more reactive going up or down the group

Answer 18

Down

Question 19

Where are the halogens on the periodic table

Answer 19

Group 7

Question 20

What group are the least reactive on the periodic table

Answer 20

Noble gases

Question 21

What does hydrogen make when it reacts with oxygen

Answer 21

Hydrogen oxide/water

Question 22

What is the name of the liquid you test for carbon dioxide

Answer 22

Limewater and becomes a cloudy solution