Question

When mixtures of gaseous H2 & Cl2 react, A product forms that has the same properties regardless of the relative amount of H2 and Cl2 used ?

1) choose the correct answer:

A) The composition of a substance depends on the total number of atoms.

B) The composition of a mixture depends on the number of atoms of each element Making the the mixture

C) The composition of a substance depends on the composition of the mixture from which it was formed.

D) The composition of a substance depends on the number of atoms of each element making up the compounds.

*When a volume of H2 reacts with an equal volume of Cl2 at the same temperature and pressure, what volume of product having the formula HCl is formed ?

Answer 1

1) When mixtures of gaseous h2 and gaseous cl2 react, a product forms that has the same properties regardless of the relative amounts of h2 and cl2 used? This statement is based on the Dalton;s definite proportion law and hence its correct answer is that the composition of a substance depends on the number of atoms of each element making the compound.

When a volume of H2 is reacted with equal volume of O2 then,

H2 + O2 ======= 2H2O

1mole 1mole 2 mole = 2x 22.4 L = 44.8 L