Question

In the reaction
hydrogen g) + oxygen) gives water
vapour, the ratio of volumes is 2.1.2.
This illustrates the law of
Conservation of mass
Combining weights
Combining volumes
all the above​

Answer 1

Answer:

Law of Conservation of Mass states that matter can neither be created nor destroyed. The total mass, that is, the sum of the mass of the reacting mixture and the products formed remains constant.

Law of Definite Proportions states that the proportion of elements by weight in a given compound will always remain exactly the same.

Gay Lussac’s Law of Gaseous Volume states that in a gaseous system, when the reactants combine together they always do so in volumes which bear a simple ratio to one another and to the volume of the products, under similar conditions of temperature and pressure.

Avogadro’s Law states that under the same conditions of temperature and pressure, the equal volume of all the gases contains an equal number of molecules.

Thus statement C is for Law of definite proportion.

Answer 2

Answer:

option C

Explanation:

law of combining volume is the only law which speaks about VOLUMES and it also states that the ratio would in small WHOLE NUMBERS.

thus C is right