D: sodium
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An alloy of copper and zinc is added to an excess of dilute hydrochloric acid. Which observations are correct?
From your knowledge of the manufacture of both aluminium and iron, what is the order of chemical reactivity of alumin…
Which pair of metals X and Y will produce the highest voltage when used as electrodes in a simple cell?
The diagram shows the electrolysis of molten lead(II) bromide using inert electrodes. What happens during this electr…
The energy profile diagram for the reaction between hydrogen and chlorine is shown. What information about this react…
The following changes could be made to the conditions in the reaction between zinc and hydrochloric acid. 1 increase …