There was a statement in a question which said:
"The order of an elementary chemical reaction step can be determined by examining its stoichiometry. "
And it was given correct.
The Attempt at a Solution
But shouldn't it be wrong? Order of a reaction is found experimentally and nothing else can determine it. So how can we simply see the stoichiometry of a reaction and say " yeah... it has this and this order". Does here "elementary chemical reaction step" make any change to the thing that I am saying?