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4.1.2 Chemical Reactions 2, Reaction Speed
Reaction speed
There are five factors which influence the speed of a reaction.
Temperature of the substances
Surface area of contact between the substances
Concentration of the substances (pure/diluted for instance)
Type of reactant
A catalyst (substance which improves reaction speed but does not react itself)
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Reaction speed
There are five factors which influence the speed of a reaction.
Temperature of the substances
Surface area of contact between the substances
Concentration of the substances (pure/diluted for instance)
Type of reactant
A catalyst (substance which improves reaction speed but does not react itself)
Slide 1 - Tekstslide
Concentration
Area surface
Temperature
Type of reactant
Catalyst
Using a fridge to store food
Pure oxygen for damaged lungs
Platinum mesh in exhaust system
Using Al instead of Fe against rust
Krumple paper for a wood fire kindling
Slide 2 - Sleepvraag
Slide 3 - Video
Temperature
Wounds healing quicker during summer then winter
Storing food in cold containers
High pressure cookware to get to higher boiling points
Slide 4 - Tekstslide
Slide 5 - Video
Surface Area
Spray injectors into car engine
Oil fire and water
Dust explosions
Slide 6 - Tekstslide
Slide 7 - Video
Concentration
Washing off acids after accidents
Adding Dinitrogenoxide to a car engine
Suffocating when the oxygen % becomes too low
N
2
O
Slide 8 - Tekstslide
Type of reactant
Magnesium burns far brighter and faster then iron
Sodium reacts far faster with water then Calcium
Iron oxides far faster then copper
Slide 9 - Tekstslide
Slide 10 - Video
Catalyst
Salt will improve the speed of oxidizing/rusting
Platinum will improve the afterburner in a car
Iron will improve the synthesis of ammonia
Slide 11 - Tekstslide
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