Electrolysis

What is electrolysis

Why must the electrodes be inert?

The two substances used for electrodes are _________

What is the advantage of doing electrolysis in an aqueous solution?

• A.

  Low temperature

• B.

  More reactive

What is the lightest and most abundant element in our universe? ______________

What is the most abundant compound on earth? _______________________w

What bond is commonly present in this compound?

• A.

  Van der Waals

• B.

  Hydrogen bonding

• C.

  Ionic

An anode attracts ______ charged ions.

What are the ions present in water?

In the electrolysis of molten sodium chloride, what is the yellow green gas formed?

• A.

  Chlorine gas

• B.

  Bromine gas

• C.

  Fluorine gas

When water decomposes, is hydrogen gas and oxygen gas formed?

• A.

  True

• B.

  False

During electrolysis, why does some metals want to be in a compound, whereas some wants to be an ion?

What is electroplating

What is a binary compound?

Given below are the electrode equations for the electrolysis of aqueous sodium chloride (brine) and the A_r's: H=1 and Cl=35.5:(-) electrode: 2H⁺_(aq) + 2e^- ==> H_2(g)(+) electrode: 2Cl^-_(aq) - 2e^- ==> Cl_2(g)If 213g of chlorine was formed at the (+) electrode, what volume (dm³) of hydrogen is formed at the (-) electrode? (1 mole of any gas = 24dm³ at room

• A.

  72

• B.

  144

• C.

  36