Question

explain law of constant proportion with one example​

Answer 1

A molecule of water will always have two hydrogen atoms and one oxygen atom, meaning that in a bottle of pure water the hydrogen to oxygen atom ratio will always be 2:1. This seems very logical to us today. But 300 years ago, scientists didn't understand compounds this way. However, in 1794, Joseph Proust published the Law of Constant Proportions, which says that a chemical molecule will always contains the same elements in the same proportion.

There are two parts to the law of constant proportions: 1) there will always be the same elements that make up a compound, and 2) the mass of these compounds will always be in the same proportion. Mark me BRAINLIST

Answer 2

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$\bold{Law\:of\:constant\:proportion:-}$


According to this law, the elements always combine to form chemical compounds in a definite proportion by mass.


$\bold{In\:other\:words,}$


The relative ratio in which the elements compounds with each other to form compounds is fixed and definite and does not vary.


$\bold{Example:-}$


We take a sample of water $H_{2}O$, we see that in every $18gm$ of water, hydrogen is $2gm$ and oxygen is $16gm$ by mass.


$\bold{Hence,}$


The ratio by mass of hydrogen to oxygen in $H_{2}O$ molecule will be,


${2:16}$ => ${1:8}$


We, find that in each sample of water the ratio will be $\bold{same.}$


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