In which of the following process, chemical change occur? 1-evaporation 2-burning 3-moisturisations 4-boiling Pls tell me the answer
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Answered by
4
Hi mate!!
Your question has been answered here
★ Chemical change :-
When a substance combines to form a new substance it is known as chemical change.
★ Physical change :- when no new substance is formed, it is known as physical change.
* Evaporation is a physical change.
* Burning is a chemical change.
* Moisturization is a chemical change.
* Boiling is a physical change.
Hope it helps you.
Answered by
1
hiii!!!
here's ur answer...
first of all, what are chemical and physical changes??
PHYSICAL CHANGE - it's a reversible change in which there's no change in it's chemical properties. only change in it's physical properties like shape, size etc.
CHEMICAL CHANGE - it's a irreversible change and there's change in the chemical properties of the the substances. the substance react and form a new substance.
given :-
1. evaporation
2. burning
3. moisturisation
4. boiling
we have to identity in which, chemical change occur.
EVAPORATION is the process in which a liquid is converted in it's vapours. and by condensation we can get back that liquid. so it's a physical change.
next is BURNING, during burning, the particles of the object react with oxygen and give off light and heat.. and new molecules are formed. hence it's a chemical Change.
MOSTURIZING is a physical change. as we know it's applied in dry skin to mosturize it but it's not permanent. so it's a physical change.
BOILING is also a physical change. because no new substance is formed. only change in it's physical properties.
hence, the only chemical process is BURNING here...
hope this helps..!!
here's ur answer...
first of all, what are chemical and physical changes??
PHYSICAL CHANGE - it's a reversible change in which there's no change in it's chemical properties. only change in it's physical properties like shape, size etc.
CHEMICAL CHANGE - it's a irreversible change and there's change in the chemical properties of the the substances. the substance react and form a new substance.
given :-
1. evaporation
2. burning
3. moisturisation
4. boiling
we have to identity in which, chemical change occur.
EVAPORATION is the process in which a liquid is converted in it's vapours. and by condensation we can get back that liquid. so it's a physical change.
next is BURNING, during burning, the particles of the object react with oxygen and give off light and heat.. and new molecules are formed. hence it's a chemical Change.
MOSTURIZING is a physical change. as we know it's applied in dry skin to mosturize it but it's not permanent. so it's a physical change.
BOILING is also a physical change. because no new substance is formed. only change in it's physical properties.
hence, the only chemical process is BURNING here...
hope this helps..!!
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