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Wat I wanna know
: PLASMA ENERGY
ARC REACTOR.

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I know differences between physical and chemical properties
I wan to know more about physical and chemical properties

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K-

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what i know:-
physical change are changes affecting the form of the substance/appearance but not its chemical composition.

chemical chnage:-
chemical change occur when a substance combines with another to form a new substance unlike physical change chemical change changes in chemical composition as well

what i want to know:-

how to differentiate when an object show both chemical and physical change

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K- examples of chemical changes
- chemical changes are irreversible changes

W- chemical reactions with different substances

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K – physical changes do not change the chemical composition of that substance while chemical changes do change the chemical composition and it forms a new substance

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PHYSICAL CHANGE IS temporary AND CHEMICAL CHANGE IS PERMANENT

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k-physical change is a change which can come back...
chemical change is a change which can never come back...

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K-physical changes are the changes that when happens there is no change in state or molecules in the reactent and it is a reversible change
Chemical changes are the changes that when takes place the chemical property,molecular property and is irreversable change
W-New examples for chemical changes

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K- Physical change does not change the compostion of its molecule.
Chemical change changes the composition of its molecules.
There are many daily life examples of these changes..

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K- physical changes are reversible and do not change the chemical characteristics of a substance
K-chemical changes are irreversible and do change the chemical characteristics of a substance

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What I known:
= physicals change can be reversible
= chemical changes can not be reversed
What I what to known:
= more properties of both chemical and physical changes

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K- physical changes are changes which happen in the appearance of the matter such as texture, smell , colour etc.

Chemical changes are changes which happen in the structure gif the matter  . They are generally not reversible and  huge amount of energy is released during chemical change
w- all the things related to physical and chemical changes

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K - Physical changes are does changes which are temporary and reversible .example = boiling of water melting of ice
Chemical changes are permanent and irreversible.example  burning of candle etc
W  - whatever is left to learn for physical and chemical changes

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K- Physical change
Can be reversed
No new thing is formed
Just change the state
Ex. Ice melting

Chemical change:
Cannot be reversible
New thing is formed
Ex. Boiling of egg.

W- I want to know if blood is exactly physical and chemical change

Any properties which are not known yet

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k- physical change is a change where the physical properties change .chemical change  is a change where the chemical properties changes and there is new properties of the new substance.
wk- i want to know is there any change like colour,texture, etc changes in physical change.

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K-The changes in which the chemical composition is not altered is called physical change. It is MOST LIKELY to be reversible.eg-melting of ice. Chemical change is the change in which the chemical composition is altered. It is irreversible.eg-burning of wood.
W

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Adya Singh
K - in physical changes there is no new substance formed . Something they are reversible
In Chemical change there is a change in its chemical properties . It is a permanent change

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What i know?
- How chemical reactions happen
- How to differentiate between chemical and physicals changes
- Revisable and non-Revisable changes

What i wanna know?
- EVRYTHING!!!

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k - physical changes is that
it does not change .
chemical changes are those change and cannot come back again
w - is there any types that last year was not thought

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Know - the characteristics and examples of physical and chemical changes
Want to know - The exceptions in the examples of these changes