Yes. Nitrogen and oxygen are both colorless, odorless gases. That means they share physical properties (their appearance, or lack thereof), but they have very different chemical properties because they are in different groups of the Periodic Table.
Yes, chemical changes result in a change in the chemical structure of a substance. During a chemical change, new substances with different chemical compositions are formed through the rearrangement of atoms and bonds. This is in contrast to physical changes, where the chemical structure remains the same even though the physical properties may change.
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Because iron oxide is not iron and the chemical/physical properties of substances are different.
If a chemical name is written incorrectly it may be mistaken for a different chemical and unknowingly used in a dangerous manner, especially since many chemicals with drastically different properties may look the same.
physical prop: melts in the hand (about 32 degrees celsius chemical prop: Makes alloy with aluminum
no
Yes, chemical changes result in a change in the chemical structure of a substance. During a chemical change, new substances with different chemical compositions are formed through the rearrangement of atoms and bonds. This is in contrast to physical changes, where the chemical structure remains the same even though the physical properties may change.
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Because iron oxide is not iron and the chemical/physical properties of substances are different.
A change is chemical if the substance's chemical composition is altered, resulting in the formation of new substances with different properties. Look for indicators such as color change, gas production, temperature change, or formation of a precipitate to help identify a chemical change.
The short answer is by their properties. If you mean solids, liquids and gases then you look at whether they have fixed shapes and fixed volumes or not. If you mean different substances, then you look at properties such as melting point, appearance and chemical reactions.
Yes
Chemical Change: a usually irreversible chemical reaction involving there arrangement of the atoms of one or more substances and a change in their chemical properties or composition, resulting in the formation of at least one new substance: The formation of ruston iron is a chemical change.It is a chemical change.A physical change is a change that does not change the chemical composition of the material. When water evaporates and condenses it is still water even though it looks different, the same as if you cut or crumple paper. It may look different, but its chemical composition has not be altered.
Atoms do not look like the material that they make.
Look in a book and you'll find out
Noticable things are physical properties. Look, appearance, feel, taste, etc. are physical properties. Physical properties can change after a chemical reaction.
In a nonmagnetic material, the domains are random and do not align in any particular direction. This lack of alignment prevents the material from exhibiting magnetic properties.