in changes. Physical changes can be reversed. E.g. if you were to melt a block of ice, and then freeze it again, it would to some degree be reversed. This is a physical change. However, if you were to burn a peace of toast, the change would be chemical. Once the toast is burnt you cant get it back.
Physical changes involve a change in appearance or state of matter without altering the chemical composition, while chemical changes result in the formation of new substances with different chemical properties.
No, the separation of cream and milk is a physical change, not a chemical change. It occurs due to differences in density between the two components and can be reversed by mixing them back together.
Physical changes involve a change in appearance, shape, or state without altering the chemical composition of the substance. Chemical changes, on the other hand, result in the formation of new substances with different chemical properties. Physical changes are usually reversible, while chemical changes are usually irreversible.
A chemical change results in the formation of new substances with different chemical properties, while a physical change involves a change in appearance, state, or form of a substance without altering its chemical composition. Chemical changes are usually irreversible, while physical changes can often be reversed.
Polarity is a chemical property. It arises from differences in electronegativity between the atoms forming a molecule, resulting in an uneven distribution of charge and a separation of positive and negative regions within the molecule.
A chemical change results in a change in chemical composition, while a physical change does not.
physical: water, wind, and temperature chemical: acid rain and rust
physical change are reversable
physical weathering is weathering that you can reverse and chemical weathering is where you can' reverse it.
Physical changes are melting and boiling in this case; fire is a combustion, a chemical change.
The physical change will keep the atoms the same not moving but the chemical change will make it move around with energy.
Physical changes involve a change in appearance or state of matter without altering the chemical composition, while chemical changes result in the formation of new substances with different chemical properties.
sai ram
go to http://evolution.berkeley.edu/evolibrary/article/0_0_0/evodevo_05 to understand what it is.
A chemical property is when you mix two substances together and a change occurs, a chemical reaction. A physical property is when you literally do something to it, like burning paper, braking wood with an axe, etc.
No, the separation of cream and milk is a physical change, not a chemical change. It occurs due to differences in density between the two components and can be reversed by mixing them back together.
Similarities: Both processes result in the breakdown of rocks and minerals. Both can occur through natural processes like temperature changes, water, and biological activity. Differences: Physical weathering involves the physical breakdown of rocks into smaller pieces without changing their chemical composition, while chemical weathering alters the chemical composition of rocks through reactions with substances like water or acids. Physical weathering does not involve chemical reactions, while chemical weathering does.