Question

in the compound carbondioxide-the elements carbon and oxygen are combined in fixed ratio . explain

Answer 1

in the compound carbon dioxide elements carbon and oxygen are combined in the fixed ratio of 1 is to 2 where there are one atom of carbon and two atoms of oxygen so we can easily say that carbon dioxide is a compound and the elements of this compound are in fixed ratio

Answer 2

Not only in CO2, even in ammonia (NH3), the ratios are same. Every two or more elements will join at same ratio.