Answer the following questions:
1. Why is sodium kept immersed in kerosene oil?
Sodium is element. To avoid accidental fires, it is kept immersed in kerosene oil to prevent its reaction with .
2. Which gas is produced when dilute hydrochloric acid is added to a reactive metal? Write the chemical reaction when iron reacts with dilute \(H_2SO_4\).
When dilute hydrochloric acid is added to a reactive metal, gas is produced.
When iron combines with dilute \(H_2SO_4\), the following chemical reaction occurs: