Explain the following ?
Matter, Element, Atom, Compound, Molecule, Mixture, Physical
change, Chemical change
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Matter:-The thing having weight occupies space is known as
matter.
Element:-From of matter which cannot be decomposed into
simpler substance are known ad element.
Atom:-The smallest particles of an element may or may not be
capable of independent existence is known as Atom.
Compound:-It is a substance produced after combining two or
more elements in a definite proportion
Molecule:- It is the smallest particle of an element or a
compound having independent existence.
Mixture:- The mixture of two or more elements or compounds
mixed unproprtionately
Physical change:-A temporary changes in which the identity
of a substance does not change is known as physical change.
Chemical change:-A permanent change in which the identity of
substance changes is known as chemical change
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