Answer
a) (i) is a gaseous element.
b) (v) is a gaseous compound.
c) (iv) is a gaseous homogeneous solution.
d) (vi) is a liquid solution.
e) (ii) is a solid.
f) (iii) is a pure liquid.
Work Step by Step
a) (i) is a gaseous element as the molecules are distributed far apart and there is only one type of atom. An example would be hydrogen gas.
b) (v) is a gaseous compound because the molecules are distributed far apart and there is only one type of molecule but the molecule has different types of atoms. An example would be water vapour.
c) (iv) is a gaseous solution because the molecules are distributed far apart and there are different molecules. An example is ethanol dissolved in water.
d) (vi) is a liquid solution because the molecules are moderately dispersed from one another. It is a solution because there are two types of molecules. An example would be ethanol dissolved in water.
e) (ii) is a solid because there is little space between the molecules. An example is solid copper metal.
f) (iii) is a pure liquid because there is moderate space between the molecules and there is only one type of molecule. An example would be liquid iodine.
