Difference between Physical and Chemical change ?
Answers were Sorted based on User's Feedback
Answer / guest
Physical change:-
(1) Only the physical properties of the substance changes
and the composition remains the same
(2) No new substances obtained
(3) The change is temporary can be reversed by ordinary
physical means
Chemical Changes:
(1) Chemical composition of the substance is changed
(2) New substance with entirely different properties obtained
(3) The change is permanent and cannot be reversed by
ordinary physical means
(4) The formula which gives the actual present in the
molecule of substance
Is This Answer Correct ? | 14 Yes | 1 No |
Answer / srishti
physical changes are changes in the physical properties of
substances. No new substance is formed in this change.
These changes may be reversible.
In chemical changes new substances are produced
Is This Answer Correct ? | 7 Yes | 1 No |
Answer / aman
the basic difference between physical and chemical change are:
physical
1.if these substances change their state they will return to
its normal state.for eg. if water changes into water vapour
or solid ice it well evaporate or condense and will change
into water.
2.their physical appearance and composition are changed.
3.it is temporary contrast to chemical.
4.no new substances are formed.
chemical
all the points when are contrasted (opposite of the points
above). for eg. a paper when burns change into ash so new
substance is formed this is example for new substance and
chemical change.
Is This Answer Correct ? | 0 Yes | 0 No |
Why do we hear thunder after seeing a flash of lightning ?
How is water purified on large scale, for drinking ?
What is the function of diethyl amine?
How many elements have been discovered ?
What is Heat of Nutralication ?
Why is sulphuric acid added during the preparation of standard fas solution?
We see the sun before it rises above the horizon in the morning. Why?
Why ate the electric fuses used in an electric current ?
Explain the Element?
What is the difference between hard and soft water ?
What is OOS AND OOT?
2 Answers Alembic, Famy Care Ltd,
Which is the indicator used in the determination of cao I cement solution?