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Answered 2013-03-18 11:53:47

Physical changes are those changes which do not cause a change in the chemical composition of the changed body. For example, change in the state of matter of a body, change in state of rest or motion of the body.

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Are changes in states of matter physical changes?

They are considered physical changes.


Why are changes of state considered physical changes?

Changes in state are physical changes because there is no change in chemical composition.


Why changes of stat are physical changes?

The changes of stat are physical changes because the stat is similar to the physical changes.



Why are chemical changes considered unseen?

Chemical changes are considered unseen because they occur at the atomic level, changing the actual structure of the thing. This is in comparison to a physical change, which is visible.



What are non reversible changes?

Non-reversible changes are essentially changes that cannot be reversed back to their previous states. They are considered permanent. Most chemical changes and some physical changes are non-reversible changes.


Why penny flattened by a hammer is a physical change?

It is a physical change, because it does not change in substance. A penny, whether in its normal state or flattened, is still a penny. Similarly, if you drop a watermelon and it breaks apart, that is also considered to be a physical change because it is still a watermelon. Things are considered to be chemical changes when the substance changes into something new, and is commonly classified as irreversible. When an object rusts, it is considered to be a chemical change. Chemical changes are associated with a temperature change, or a color change or bubbling or something of the sort. Physical changes deal with physical changes in state, for example, ice melting, or in the example you provided, a penny being flattened.


Are phase changes always physical changes?

phase changes are always physical changes


What is marijuana physical changes?

what is marijuana physical changes


What Physical changes have you undergone?

have you undergone these physical changes


Is colorless a chemical or physical property?

Colorless is considered a type of physical property. It is not something that changes chemically as it this property only affects appearance.


Are all physical changes are reversible changes?

yes , all the physical changes are reversible changes.


What are physical and chemical changes?

physical: what changes on the outside chemical:what changes on the outside


Types of Physical Changes?

Phase changes and dissolving are types of physical changes.


What are the chemical and physical changes of photosynthesis?

There are no physical changes. there are only chemical changes.


Why is boiling water considered a physical change?

Because it physically changes from a liquid state to a gaseous state.


Similarities of chemical and physical changes?

chemical changes & physical changes they have their same combustion


What is a list of physical changes?

physical changes are boiling and burning.


Changes of state are considered physical changes because?

Physical changes are changes that don't change the structure of the individual molecules. Though heating a liquid to a gas will change how the molecules are bound to each other, the individual molecules will not change. This is contrasted from a chemical change, where the atoms of the molecules are rearranged.



What is The difference of physical science and chemical science?

Chemical science is the study of chemical changes, i.e. changes that involve electron transfer, bond formation and the thermodynamics and kinetics involved in these changes. Physical science is a broader term that encompasses the study of natural phenomena. Chemical science can be considered as a part of physical sciences.


How Are the changes of state a physical changes?

The physical characteristics change, not the chemical.


Is humidity a physical change?

Changes in humidity are physical, NOT chemical, changes.


Physical changes in a substance results in?

Physical changes in a substance result in


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