reaction of reactive metals with cold water, steam and dilute hcl
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22 Terms
potassium with cold water
reacts very violently
enough heat is produced to cause h2 gas catch fire and explode
sodium with cold water
reacts violently
h2 gas may catch fire and explode
calcium with cold water
reacts readily
magnesium with cold water
reacts very slowly
a test tube of h2 gas may be produced a only after a few days
zinc with cold water
no reaction occurs
iron with cold water
no reaction occurs
lead / copper / silver with cold water
no reaction occurs
potassium with steam
reacts explosively
sodium with steam
reacts explosively
calcium with steam
reacts explosively
magnesium with steam
hot mg reacts violently
mg oxide produced is a white solid
a bright white glow is produced during the reaction
zinc with steam
hot zn reacts readily
zn oxide produced is yellow when hot and white when cold
iron with steam
red hot iron reacts slowly
iron must be constantly heated for the reaction to take place
reaction is reversible
lead / copper / silver with steam
no reaction occurs
potassium with dilute hcl
reacts explosively
sodium with dilute hcl
reacts explosively
calcium with dilute hcl
reacts violently
magnesium with dilute hcl
reacts rapidly
zinc with dilute hcl
reacts moderately fast
iron with dilute hcl
reacts slowly
lead with dilute hcl
no reaction occurs
although lead is more reactive than hydrogen, at the start of the reaction, an insoluble layer of lead chloride forms on the surface of lead, preventing reaction from taking place
copper / silver with dilute hcl
no reaction occurs