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Subdecks (5)
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Chemistry paper 1
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Cards (101)
independant variable: what you
change
or
select
dependant variable: what you
measure
control variable: what you
keep
the
same
what word describes how noble gases exist as single molecules?
monatomic
what word describes how halogens exist as pairs?
diatomic
if the metal is more reactive than hydrogen in electrolysis, what will form at the cathode?
hydrogen
what forms at the anode if there is no halide present or the solution is dilute?
oxygen
does the cathode give or take electrons?
gives
does the anode give or take electrons?
takes
what elements form at the cathode?
metal
or
hydrogen
what element forms at anode?
a
non-metal
or
oxygen
what do you mix with aluminium oxide to lower its melting point?
cryolite
See all 101 cards