Question

hydrogen is combustible oxygen helps in combustion but water helps to extinguish fire

Answer 1

Hey there!

Hydrogen is combustible ,oxygen helps combustion , but water helps to extinguish fire as the combination of hydrogen and oxygen is a chemical mixture and the properties get changed so it's properties also get changed.

Hope it helps!

Answer 2

Answer:

a.Water is made up of two elements, that's hydrogen and oxygen. Hydrogen is flammable, but oxygen is not. Flammability is the ability of a combustible material with an adequate supply of oxygen (or another oxidiser) to sustain enough heat energy to keep a fire going after it has been ignited. Though water is made up of two atoms of hydrogen and one atom of oxygen by forming an ionic compound, it does not possess the characteristics of them because a compound does not have the properties of its constituent elements. Therefore, water has its own properties, which helps to extinguish fire.