Atoms and Molec...

Irrespective of the source, a pure sample of water always yields $$88.89\%$$ oxygen by mass and $$11.11\%$$ hydrogen by mass. This is explained by the law of:

$$8$$ g of $$O_{2}$$ has the same number of molecules as:

Choose the correct option for the following statement.

The number of molecules present in $$4.4$$ g of $$CO_{2}$$ gas is:

Which of the following is the best example to demonstrate the law of conservation of mass?

The weight of gaseous mixture containing $$6.02 \times 10^{23}$$ molecules of nitrogen and $$3.01\times 10^{23}$$ molecules of sulphur dioxide is:

Number of atoms in $$558.5$$ gram Fe is:

$$10$$ grams each of  $$O_{2},\ N_{2}$$ and $$Cl_{2}$$ are kept in three bottles. The correct order of arrangement of bottles containing decreasing number of molecules is:

Which of the following has highest mass?

Which one of the following contains a same number of atoms as there are in 12 grams of magnesium?