Answer
Nanoscale particles in a sample of gas: (iii), (iv), (vii), (ix)
Nanoscale particles in a sample of liquid: (v), (viii)
Nanoscale particles in a sample of solid: (i), (ii), (v), (vi)
Nanoscale particles in a sample of an element: (i), (iv), (vi)
Nanoscale particles in a sample of a compound: (iii)
Nanoscale particles in a sample of a mixture: (ii), (v), (vii), (viii), (ix)
Nanoscale particles in a sample of a pure substance: (i), (iii), (iv), (vi)
Work Step by Step
(i) It is solid because particles are packed closely together and there is structure. It consists of atoms of only one element.
(ii) It is solid because particles are packed closely together and there is structure. It consists of atoms of two different elements.
(iii) It is gas because particles are far from each other and there is no structure. It consists of molecules of a compound.
(iv) It is gas because particles are far from each other and there is no structure. It consists of atoms of only one element.
(v) Mixture of a solid (red) and liquid (blue).
(vi) Solid that consists of molecules of the same element.
(vii) Mixture of two different gases.
(viii) Mixture of two liquids.
(ix) Mixture of two different gases.
