Reactions of Metals Flashcards
what is an ore
rock containing enough of a metal compound to be economically worth extracting
what is a half equation
equation that shows whether a substance is gaining or losing electrons
In terms of electrons, what is reduction
gain of electrons
In terms of electrons, what is oxidation
loss of electrons
what is a spectator ion
An ion that is unchanged in a reaction
what type of substance is given as ions in an ionic equation
ionic compounds in solution (or liquid)
what is an ionic equation
An equation which gives some substances as ions and spectator ions removed
how are metals more reactive than carbon extracted from their ores
Electrolysis
In terms of oxygen, what’s reduction
removal of oxygen
In terms of oxygen, what’s oxidation
addition of oxygen
how are metals less reactive than carbon extracted from their ores
reduction with carbon
why are gold and silver found naturally as elements in the Earth’s crust
they are very unreactive
how can metals be ordered by their reactivity
by comparing their reactions with water, acid or oxygen
what does reactivity mean
how vigorously a substance chemically reacts
