Which option shows the correct labels to replace X, Y, and Z respectively in the diagram?

Which equation represents the overall reaction that produces electricity in a hydrogen-oxygen fuel cell?

Which option describes the electrolysis of molten potassium bromide?

What is product of a hydrogen-oxygen fuel cell?

A student makes three statements

1. The steel object turns a reddish-brown color

2. The aqueous copper(II) sulfate change to a paler blue color

3. The copper electrode becomes a thinner

Concentrated aqueous sodium chloride is electrolysed using inert electrodes. Which equation shows the correct ionic half-equation for the reaction at the anode?

Molten zinc oxide is electrolysed using inert electrodes. Which option identifies the product at each electrode?

Dilute aqueous sodium chloride is electrolysed using platinum electrodes. What is the half-equation for the reaction at the cathode?

Hydrogen-oxygen fuel cells can be used to power vehicles. Which statement about hydrogen-oxygen fuel cells is correct?

Which particles are responsible for the transfer of charge in the external circuit during the electrolysis of molten lead(II) bromide?

Two statements about hydrogen are listed

1. Hydrogen is used as a fuel

2. When hydrogen burns in the air to form water, thermal energy is produced

Which conclusion about these statements is correct?

Concentrated aqueous copper(II) chloride is electrolysed using carbon electrodes. What is formed at each electrodes?

Which products are formed when dilute sulfuric acid undergoes electrolysis?

Which row correctly describes the positive electrode, the negative electrode and the electrolyte, repectively ....

Three aqueous solutions, L, M, and N, are electrolysed using inert electrodes.

L is concentrated hydrochloric acid

M is concentrated aqueous sodium chloride

N is dilute aqueous sodium chloride

Which solutions produce a pale

Dilute sulfuric acid is electrolysed using inert electrodes. What are the ionic half-equations for the reactions that take place at each electrode?

Which statements about hydrogen-oxygen fuel cells are correct?

1. They convert chemical energy into electrical energy

2. Hydrogen is reduced in the fuel cells

3. They do not produce any atmospheric pollutants

Concentrated aqueous sodium chloride and dilute sulfuric acid are each electrolysed separately using inert electrodes. Three statements about the electrolysis of these electrolytes are listed

1. a gas is produced at each electrode for both electrolytes

2. oxygen is produced at the cathode for both electrolytes

3. hydrogen is produced at the cathode for both electrolytes

Which statements are correct?

Hydrogen-oxygen fuel cells can be used to power cars. Which processes produce the fuel of a hydrogen-oygen fuel cell?

1. the crecking of hydrocarbons

2. the electrolysis of dilute sulfuric acid]

3. photosynthesis

4. the electrolysis of molten aluminium oxide