Combustion And Periodic Table Flashcards
What do you need to start a fire
Oxygen, heat and fuel
What is combustion
Another word for burning
What is an hydrocarbon
Hydrogen and carbon
What happens when a fuel reacts with oxygen
Releases energy (light/heat)
What is the word equation for combustion
Fuel + oxygen > carbon dioxide + water
What are the reactants of combustion
Fuel and oxygen
What are the products of combustion
Carbon dioxide and water
Is combustion irreversible?
Yes
What gases are there in the air
Nitrogen 78% oxygen 21% argon 1% carbon dioxide 0.04%
What do metals produce when they react with oxygen
Oxide
What is oxidation
When a substance (metal or non metal) reacts with oxygen to form an oxide
Oxidation reaction
Copper + oxygen > copper oxide
What is an independent variable
What we change
What is a dependent variable
What we measure
What is a control variable
What we keep the same
Where are the noble gases on the periodic table
Group 8/0
Where are the alkali metals on the periodic table
Group 1
Do alkali metals get more reactive going up or down the group
Down
Where are the halogens on the periodic table
Group 7
What group are the least reactive on the periodic table
Noble gases
What does hydrogen make when it reacts with oxygen
Hydrogen oxide/water
What is the name of the liquid you test for carbon dioxide
Limewater and becomes a cloudy solution
