chemical changes Flashcards
the reactivity series
the reactivity series
what is an ore?[1]
a rock containing enough of a metal for it to be economical to extract
the reactivity series
most meatals in ores are ___________ ______ to other elements in _________. Many of these metals have been ________. So to _______ the metals from their _____, the metal _____ must be reduced.[3]
most meatals in ores are CHEMICALLY BONDED to other elements in COMPOUNDS. Many of these metals have been OXIDISED.
the reactivity series
how would potassium, sodium, litium and calcium react with water and dilute acid? [4]
reacting with water - fizz, giving off hydrogen gas, leaving an alkiline solution of metal hydroxide.
reacting with dilute acid - explode
the reactivity series
how would magnesium, aluminium, zinc and iron react with water and dilute acid? [4]
reacting with water - very slow reaction
reacting with dilute acid - fizz, giving off hydrogen gas, forming a salt.
the reactivity series
how would tin and lead react with water and dilute acid? [2]
reacting with water - slight reaction with steam
reacting with dilute acid - reacting slowly with warm acid
the reactivity series
how would copper, silver and gold react with water and dilute acid? [1]
no reaction for both
the reactivity series
name 1 safety tip for when reacting metals with water/ dilute acid.[1]
wear safety goggles
