hormones
The molecule's function and chemical and physical properties
Physical, chemical is one that affects the chemical make up of the substance.
The identity of the substance reamain unchanged.
Pungent odor is a physical change because it only affects the sense of smell without altering the chemical composition of the substance emitting the odor.
Cinnabar is not a pure substance because it is a mineral composed of mercury sulfide and may contain impurities or other elements mixed in its crystalline structure. This impurity affects the chemical composition of cinnabar, making it a mineral rather than a pure substance.
chemical change
almost every chemical substance like sugar or cocain
The most important is the chemical composition.
The molecule's function and chemical and physical properties
almost every chemical substance like sugar or cocain
Chemical changes change to a substance`s chemical formula but a Physical change only affects attributes like color shape or size
Physical, chemical is one that affects the chemical make up of the substance.
Physical. A phisical chage only affects the sapearance. A chemical change affects the make-up of the substance. If you cut glass than you are just chugging the shape of the glass, but it is still glass.
Because melting only affects the state of matter that the melted substance is, it doesn't change the chemical properties.
Its a chemical property because the substance has changed into another
A chemical change results in the formation of new substances with different chemical properties, such as changes in color, odor, or the formation of gas or precipitate. A physical change, on the other hand, only affects the physical state of a substance, without changing its chemical composition.
Almost any "molecular" chemical substance will affect a coin, the most common being sweat which comes from handling the coin over a period. All coins will eventually tarnish due to being handled.