Electrolysis involves using electricity to break down electrolytes to form elements. The products of electrolysis can be predicted for a given electrolyte.
In electrolysis, what is the name of the negative electrode?
What happens at the anode during electrolysis?
Negative ions gain electrons
Positive ions gain electrons
Negative ions lose electrons
In the electrolysis of molten lead bromide, what is the product at the anode?
In the electrolysis of copper nitrate solution, what is the product at the cathode?
In the electrolysis of a solution, which ions from water are attracted to the anode?
In the electrolysis of sodium chloride solution, what is the product at the cathode?
What is a hypothesis?
Something that is shown by evidence from an experiment
An idea to be tested by experiment, backed up by scientific knowledge
The longest side of a right-angled triangle
What is reduction? - Higher
Which half equation represents the reaction at the cathode in the electrolysis of molten copper chloride? - Higher
2Cl- → Cl2 + 2e-
Cu2+ + 2e- → Cu
2H+ + 2e- → H2
Which half equation represents a reaction at the anode in the electrolysis of aqueous sodium nitrate? - Higher
Na+ + e- → Na
4OH- → 2H2O + O2 + 4e-