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WorksheetsReactivity series
Total questions: 21
Worksheet time: 12mins
Most reactive metal
Copper
Magnesium
Platinum
Potassium
can metals below hydrogen react to dilute acids
yes
no
Which method is used to extract copper
Electrolysis
Heating
Heating with carbon
Throwing it on the floor :)
What is hydrated iron oxide
(a)
What is native metal
From ur country
Highly reactive
a metal ore found always in its pure form
Orang asli
what is bronze when oxidized
verdigris
patina
brass
green metal layer
what are the causes of rusting
water and oxygen
alkalis
scratching
painting
how is rusting prevented
physical barrier (paint, oil, electroplating)
keeping it in a jar of water
sacrificial protection
galvanizing
definition of corrosion
a reaction with metals with substances to form a layer of metal compound on its surface
a reaction with metals with substances to form a layer of salt on its surface
a reaction of metals with substances to form a layer of metal compound in the core of the metal
Genshin corrosion reference?????????????????????????????(click for free correct 100% real)
are native metals reactive
yes
no
What metal is extracted by heating with carbon
Sodium
Potassium
Zinc
Calcium
What is verdigris from
(a)
Why is aluminum used in pans
It is not reactive and protects the pan from chemicals
It reacts quickly and forms a stable and safe oxide layer
What reacts with cold water
Sodium
Lead
Gold
Copper
What doesn't react with acids
Gold
Copper
Zinc
Aluminium
Potassium can't react with water while copper can
True
False
Is magnesium more reactive than aluminium
True
False
What causes displacement
when a compound meets a more reactive metal
when a highly unreactive metal meets a reactive compound
when electricity is used on a metal
when an acid reacts with a base
Message @Derrick Chow Wen Lit
Does corrosion weaken all metals?
No
Yes
Does corrosion of aluminium make it weaker?
No
Yes
Does mecury react well with steam
Yes
No
