Some indicators of a chemical reaction are:
- change of color
- change of odor
- release of a gas
- change of the temperature
- change of the viscosity
- formation of a precipitate
- change of general appearance
- possible explosion
- possible chemiluminiscence
in chemical change the chemical properties of an object are changed. for example a paper is burned. both the chemical and physical properties of the paper are change. the paper itself changed into carbon. that is a chemical change. if for example the paper is cut into small pieces that is called physical change because the paper is still a paper but the physical properties of the paper are changed since it became smaller when you cut it.
The chemical composition of the product changes during a chemical reaction. These substances are completely transformed during all chemical reactions.
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This process involve chemical reactions but also physical changes.
yes chemical properties do change a substance physical properties just change the physical shape or look!!!
chemical
Physical changes can be undone. It is not possible to unfry a chicken. The heat casues chemical changes in the meat and in any coating.
non example of chemical change: one non example is ice. ice is NOT an example of chemical change.
Yes it is released/ absorbed during chemical changes.
During a chemical change the molecule is transformed; during a physical change the molecule is not transformed.
This process involve chemical reactions but also physical changes.
chemical change
Yes. Chemical changes occur during the calcination of ceramics for pottery.
There are no chemical changes.
Physical. Physical changes include things such as changing shape or color. Chemical changes change the chemical properties of a material, often during a chemical reaction.
yes chemical properties do change a substance physical properties just change the physical shape or look!!!
It is a chemical change because the ammonium dichromate changes color, explodes, and probably creates a gas during the change.
Yes. Chemical changes are irreversible, but physical changes can easily be changed back
Actually both physical and chemical changes are happening during cement mixing.
A physical change is a change in chemical composition. A physical change is a change where chemical composition is not altered. Not all chemical changes are accompanied by a physical change, but some are. The same is true for the reverse.