How does aerobic respiration differ from anaerobic respiration?

How does use of a fuse wire protect electrical appliances?

Write the balanced chemical equations for the following reactions.

a. Sodium carbonate on reaction with hydrochloric acid in equal molar concentrations gives sodium chloride and sodium hydrogen carbonate.

b. Sodium hydrogen carbonate on reaction with hydrochloric acid gives sodium chloride, water and liberates carbon dioxide.

c. Copper sulphate on treatment with potassium iodide precipitates cuprous iodide (Cu₂I₂), liberates iodine gas and also forms potassium sulphate.

State reason for the following:

a. In human heart, the walls of the ventricles are thicker than the auricles.

b. During the breathing cycle, even after forceful exhalation, the exchange of gases continues.

c. In green plants during the day carbon dioxide is generated in respiration but is not released out.

Three resistors are connected as shown in the figure. Through the resistor 5 ohms, a constant current of 1 ampere is flowing.

a. What is the current through the other two resistors?

b. What is the potential difference across AB and across AC?

c. What is the total resistance?