Question

A student used the setup below to prepare oxygen gas in the laboratory. Study it and answer the questions that follow.

1. Identify solid K. 
2. Name the apparatus labeled L. 
3. Write an equation for the reaction in the conical flask. 

Answer 1

1. Solid K - Sodium peroxide 
2. Beehive stand 
3. 2Na₂O_2(s) + 2H₂O_(l) → 4NaOH_(aq) + O_2(g)