Answer:
Postulate 4
Step-by-step explanation:
Dalton's atomic theory-
According to the postulate number four of the Dalton's atomic theory , the theoretical yield can be calculated for the chemical reaction .
Since ,
A compound is formed by atoms or ions or by elements .
And these atoms combine in a small , simplest , whole number , to form the compound .
And , these numbers of the atoms are always fixed for a particular compound .