1. What is matter ?
2. Define molecules and atom ?
3. Why do solids have a fixed shape and volume ?
4. Name two solids having definite molecular pattern and two solids not having definite molecular pattern .
5. How do liquids flow ?
6. Gas molecules move freely in all directions- Why ?
please can you answer it point wise . And in full sentence . Those who will answer point wise I will mark them as brainlest answer.
Answers
Answer:
1.physical substance in general, as distinct from mind and spirit; (in physics) that which occupies space and possesses rest mass, especially as distinct from energy.
2.molecule is an electrically neutral group of two or more atoms held together by chemical bonds. Molecules are distinguished from ions by their lack of electrical charge.
the smallest particle of a chemical element that can exist.
3.Solids have a fixed shape and a fixed size. The particles are very close together and held in place by strong forces (bonds). Their particles cannot move around, but they do vibrate. Because the particles cannot move around, a solid has a fixed shape.
4. nil
5.Liquids flow because the particles in a liquid are not very tightly bound to each other and they have high intermolecular spaces between them, which allows the particles to be displaced or move causing the liquids to flow
6. Gas – In a gas, particles are in continual straight-line motion. The kinetic energy of the molecule is greater than the attractive force between them, thus they are much farther apart and move freely of each other. ... This means that a gas has nothing to hold a specific shape or volume.