Question

In a chemical reaction carbon+ oxygen gives carbon + oxygen gives carbon dioxide carbon is 10gm and oxygen is 20gm the mass of carbon dioxide is 30 grams
a.) prove the first law of chemical combination.
B.) name the law involved.سهل

Answer 1

Answer:

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Explanation:

C+O  

2

​

→CO  

2

​

 

3g    8g         11g

Total mass of reactants = mass of carbon + mass of oxygen =3+8=11g

Total mass of reactants = Total mass of products

Hence, the law of conservation of mass is proved.

Further, it also shows carbon dioxide contains carbon and oxygen in a fixed ratio by mass, which is 3:8.

Thus it also proves the law of constant proportions. 3 g of carbon must also combine with 8 g of oxygen only.

This means that (50−8)=42g of oxygen will remain unreacted.