Electrolysis Concepts

Front

What are the two rods placed in the substance being electrolysed called?

Back

Electrodes

Front

The positive electrode attracts which ion?

Back

Negative ions which lose electrons

Front

Why does electrolysis only works if the electrolyte is either molten or in solution?

Back

The ions need to be free to move.

Front

Which type of substances can only be electrolysed?

Back

Ionic

Front

Predict the products when molten magnesium bromide is electrolysed.

Back

Magnesium metal and bromine gas

Front

What is an electrolyte?

Back

A molten compound or solution that is to be broken down by electrolysis

Front

What is a cathode?

Back

A negatively charged electrode

Front

What is formed at the cathode when molten sodium chloride is electrolysed

Back

Sodium

Front

The anode is

Back

The positively charged electrode

Front

What are the products when aqueous copper sulphate is electrolysed

Back

Copper metal and oxygen gas