Metals Flashcards
Which group reacts the most aggressively towards water
Group 1 and 2 the alkali metals and calcium
What do group 1 elements form when reacting with water
On acid or an Alkalien
Why do group one elements form an acid/alkaline in water
Because the metal hydroxide is produced and subsequently dissolved in the water.
What is the order of the reactivity serie
Potassium
Sodium
Calcium
Magnesium
Aluminium
Carbon
Zinc
Iron
Tin
Lead
Hydrogen
Copper
Silver
Gold
What is the test for hydrogen
LIT splint test
What happens when metals react with acid
It produces hydrogen gas and a metal salt
What are the reagents of the thermite reaction
Aluminium and iron oxide
What does magnesium help with in the thermite reaction
It acts like a fuse and toghether with the igniter mixture it provides the energy needed for the reaction
What does the thermite reaction produce
It produces lumps of iron metal
What is the thermite reaction used for in the real world
It’s used to creat train tracks
Why is the thermite reaction dangerous
It’s because it produces lots of heat and sparks
What does reduced mean
It’s when a substance has lost oxygen
When do metals corrode
When they are left in contact with air or water
What is it called when iron rusts
It’s called rusting
What is rusting
Rusting is the oxidation reaction of iron with oxygen in the presence of water
