Heating water with a Bunsen burner results in a 2:1 mixture of hydrogen and oxygen gases. true or false?

The correct answer is

false

Explanation:

Heating the water in a Bunsen burner will raise the temperature of the water (ΔH = m·c·ΔT) to boiling point which is 100 °C at which point all the water will evaporate as more heat is added by ΔH = m·L

To split water into hydrogen and oxygen gases is accomplished by water electrolysis where hydrogen and oxygen are liberated from the H₂O molecule by distinct evolution reactions at the electrodes. That is electric passes through liquid water and transforms it into oxygen an hydrogen gases