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WorksheetsElectrochemistry 1
Total questions: 20
Worksheet time: 11mins
WHAT IS ELECTROCHEMISTRY
THE INTERCONNECTION BETWEEN ELECTRICITY AND CHEMISTRY
FORMATION OF ELECTROLYTE
TO CELEBRATE GRACE
ELECTRICITY PASSING THROUGH A CHEMISTRY CLASS
Electrons always flow from
cathode to anode
anode to cathode
When a Mg atom becomes a Mg2+ ion, the number of protons in the nucleus
increases
decreases
stays the same
Electrons are gained at the
anode
cathode
What is an anode?
It is the electrode where oxidation takes place.
It is the electrode where reduction takes place.
It is an aqueous solution containing an electrode.
It is the salt bridge that connects half-cells.
Diagram shows an electrolysis cell.
Which of the substances cause the bulb to light up when electricity passes through it?
Ethanol
Dilute ethanoic acid
Solid lead(II) bromide
Tetrachloromethane
What is the name given to the negative electrode
(a)
What particles carry the electrical charge through the electrodes
Electrons
Ions
Atoms
Molecules
What particles carry the electrical charge through the electrolyte
Electrons
Ions
Atoms
Molecules
Positive ions (cations) move towards the cathode (-) where they will discharge by....
Breaking apart
Losing electrons
Clumping together.
Gaining electrons
What is a cathode?
It is the electrode where oxidation takes place.
It is the electrode where reduction takes place.
It is an aqueous solution containing an electrode.
It is the salt bridge that connects half-cells.
