Hey There!
let see the definition of law of multiple proportions when two eliments combine to form more than one compound the mass of one element which combine with mass of other element is will always be a fixed ratio ,accordingly answer is first option.
Answer A : N2O , NO , NO2
Answer:
yes, the number of protons makes an atom whatever element it is, and the number of protons cannot be changed, because changing the number of protons would change what element it is. the number of protons in each element is unique.
Explanation:
It would be the Aqueous solution
In the reaction represented by the equation 2Al2O3-->4Al+3O2, what is the mole ratio of aluminum to oxygen?
4:3