1. How will you show that air is a matter? Give your answer with the help of an experiment.
2. What do you understand by intermolecular space? Explain with the help of examples.
3. Define these terms:
(i) Matter (ii) Atom (iii) Molecule (iv) Freezing point (v) Boiling point
Answers
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Answer:
1.Matter is anything that has mass and takes up space. So, in order to prove that air is matter, we need to prove that air has mass and takes up space. ... Although air has mass, a small volume of air, such as the air in the balloons, doesn't have too much. Air just isn't very dense.
2.Intermolecular space is the space between two molecules and atoms. For example when we dissolve sugar in water , the particles of sugar dissappear due to the intermolecular space of water
3.(i)matter
Matter is defined as anything that has mass and takes up space (it has volume).
(ii)atom
An atom is the smallest unit of ordinary matter that forms a chemical element.
(iii)molecule
A molecule is a particle made up of two or more atoms that are chemically bonded together
(iv)freezing point
Freezing point, temperature at which a liquid becomes a solid.
(v)boiling point
The boiling point of a substance is the temperature at which the vapor pressure of a liquid equals the pressure surrounding the liquid and the liquid changes into a vapor.
Explanation:
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Explanation:
1)Air is a matter and a way to prove this is to blow up a balloon. Before you add air into the balloon, it is empty and shapeless. Once you blow the air in, the balloon expands and know that air is filling it. The balloon will also float to the ground as the air is in there.
2)Intermolecular space is the distance between the molecules. For example, the intermolecular spaces for liquid substances is much less than the intermolecular spaces for substances in the gas phase.
3)
Matter- any substance that has mass and takes up space by having volume.
Atom- an atom is the smallest unit of matter.
Molecule- a group of atoms chemically bonded.
Freezing point- the temperature at which a liquid becomes a solid.
Boiling point- the temperature at which a liquid becomes a gas.