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☆☆☆☆☆1.4 moles - the HCl is the limiting ingredient
The atom
The force of an washing machine can wash 10-15 clothes at the same time.
Aluminum is reduced.
Zinc ions are formed.
In HSO4- sulfur's oxidation state is +5.
When a potential difference is applied across the electrodes, one becomes positive (the anode) and one negative.(the cathode). Ions in the electrolyte are attracted to the electrodes, and move towards them. Here they are discharged, resulting in chemical changes. At the anode, negative ions give up their electrons, and at the cathode positive ions receive electrons, which maintains a flow of electrons (a current) in the external circuit. The electrolyte may be molten, or a solution. For instance, in molten sodium chloride, positive sodium ions move to the cathode where they accept electrons and become sodium atoms, i.e. sodium metal is formed. At the same time, negative chloride ions move to the anode and lose electrons, forming chlorine atoms, which combine to make chlorine molecules, and chlorine gas is evolved.
Cu(s)
The element with the greater reduction potential is the one that is reduced.
A Spontaneous Redox Reaction
The overall voltage for a redox reaction with the half reactions Mg s -- Mg2 plus plus 2e- and Cu2 plus -- Cu is 76 V.
The amount of Koh
These coefficients show the number of molecules involved in the chemical reaction.
