CH-1581
Reactivity series
Chemistry · Secondary 4 · Medium · Reactivity series
A student cleans a strip of magnesium with sandpaper before placing it into aqueous copper(II) sulfate.
Why is the magnesium cleaned first?
Why is the magnesium cleaned first?
- To remove the oxide layer so magnesium can react more easily
- To dry the magnesium so it does not dissolve
- To cool the magnesium so the reaction is slower
- To add copper to the surface to start the reaction
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