Electrolysis

Explain why the electrolyte has to be a liquid.

• So the ions can move

• So the electrons can move

• So that it doesn't get too hot

• So the fish are ok

A student wishes to electroplate an object with copper.<\/p>

Which row is correct?<\/p>

• A<\/p>

• B<\/p>

• C<\/p>

• D<\/p>

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

What is electrolysis?

• breaking down of a compound using a current

• making a compound using a current

Tags

NGSS.HS-PS2-5

Positive ions (cations) will move towards the cathode (-) where they will discharge by....

• Breaking apart

• Losing electrons

• Clumping together.

• Gaining electrons

Tags

NGSS.HS-PS2-5

When NaCl solution is electrolysed what has forms at the anode?

• Hydrogen

• Oxygen

• Chlorine

• Sodium

Oxidation is loss of electron. Where does oxidation take place during electrolysis.

• At anode

• In the electrolyte

• At the circuit

• At cathode

What kind of Electrical Current does Electroysis require?

• Direct

• Indirect

• Anternative

• A alternating

Which statement correctly describes the 2 electrodes?

• The anode is negative and the cathode is positive

• The anode and cathode are both positive

• The anode is positive and the cathode is negative

• The anode and cathode are both negative.

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-5

What happens at the positive electrode?

• Positive non-metal ions are attracted

• Positive metal ions are attracted

• Negative non-metal ions are attracted

• Negative metal ions are attracted

What is the name of the positive electrode?

• cathode

• anode

Tags

NGSS.HS-PS2-5