Explain why the carbon anodes need to be replaced periodically. Who ever Answer this right will get brainliest :3​

Carbon anodes need to be replaced periodically to avoid oxidation. During the Electrolysis of the Alumina, Oxygen is deposited at the anode. The oxygen reacts with the carbon anodes causing the formation of carbon dioxide. Anode is made up of the graphite (or Carbon), thus carbon reacts with the Oxygen and forms its oxide. As a result of this Oxidation, we need to replace the anode from time to time

state the principle of separating two immiscible liquids by separating funnel. describe an activity with diagram to separate a mixture of water and kerosene oil. answer: immiscible layers separate out in layers depending on their densities in separating funne

answer: c. the experiment shows that the red substance experienced a chemical change.

explanation: chemical change is the change in which chemical composition of the substance changes. physical change is the change in which there is no change in chemical composition.

chemical changes are accompanied by following changes:

a) precipitate formation

b) energy is released or absorbed

c) formation of bubbles

d) change in color

as it is given that the red color has disappeared and there is production of gas, it means the red substance has undergone a chemical change.

e