2-

What is the ratio of the number of molecules in 71 g of gaseous chlorine to the

number of molecules in 2 g of gaseous hydrogen?

[Relative atomic masses Ar (atomic weights): H= 1, Cl=35.5]

A) 1:1

B) 1:2

C) 2:1

3-

D) 71:2

2-

What is the ratio of the number of molecules in 71 g of gaseous chlorine to the

number of molecules in 2 g of gaseous hydrogen?

[Relative atomic masses Ar (atomic weights): H= 1, Cl=35.5]

A) 1:1

B) 1:2

C) 2:1

3-

D) 71:2