Question

osition.
the
he
2. Define the following terms:
(a) Matter
(b) Atom
(c) molecule
(d) Molecular space
(e) Molecular force
3. (a) Define solid.
(b) On the basis of molecular theory, explain why
solids have a definite shape and a definite
volume.
4. (a) Define liquid.
(b) On the basis of molecular theory, explain why
liquids have a definite volume, but no definite
shape.
5.(a) Define gas.
(b) On the basis of molecular theory, explain why
gases have neither definite shape nor definite
volume.
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Answer 1

Answer:

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Explanation:

2

1. Matter: A matter is a substance which has weight an occupies space.The smallest part of matter is molecule.
2. Atom: An atom is the smallest unit of ordinary matter that forms a chemical element. Every solid, liquid, gas, and plasma is composed of neutral or ionized atoms.
3. molecule: A molecule is the smallest particle in a chemical element or compound that has the chemical properties of that element or compound. Molecules are made up of atoms that are held together by chemical bonds.
4. Molecular space:A molecule is made up of atoms. Space between molecules is inter-molecular space. Space within the molecule (between atoms) is intramolecular space.
5. Molecular force: Force between molecules is intermolecular force. Force within a molecule (between atoms) is intramolecular force.