Question

Oxygen support combustion but when it combine with hydrogen to form water it goes not support combustion .Why?

Answer 1

Answer:

the propertise of a compound are different from those of its constituent element

Explanation:

for example:sodium and chlorine are poisonous substance but they form a compound sodiumchloride (common salt) ,which we add to our food

Answer 2

Answer:

chemical_reaction_changes_chemical_property..........

Explanation: