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How does a chemical change affect the composition of matter?

chemical change = chemical reaction. ( the composition of matter always changes). In a chemical change the matter in one thing changes, for example you will know a chemical change has occurred when the color or odor has changes or when a new gas is given off.


Why is deodorant a chemical change?

because it changes its chemical composition.


Is milk sours a example of physical change?

No, milk souring is an example of a chemical change. When milk sours, bacteria ferment the lactose in the milk, producing lactic acid, which changes the composition and properties of the milk. This is a chemical reaction, not a physical change.


What is the diffence between physical and chemical properties as well an physical and chemical changes?

Physical properties can be observed without changing the chemical composition of a substance. Chemical properties can only be observed by changing the chemical composition of the substance. In a physical change, the chemical composition of the substance does not change. In a chemical change, the chemical composition of the substance changes.


What are the signs of physical change and chemical change?

Physical Change: A change in which the atoms or molecules in a substance stay the same. Example: Ripping a piece of paper in half Chemical Change: A change that affects the type of molecules or atoms in a substance. Example: Burning wood The primary difference is that in a physical change, the composition of the substance remains the same, but in a chemical change, the composition of the substance changes.


Is water boiling example of chemical change?

No, a chemical change is when a substance and forms one or more new substances, it changes its composition. examples: changes in color production of gas formation of precipitate Boiling water is an example of physical change, it can be any phase change.


Which process is an example of a physical change?

Dissolving salt in water and making ice cubes


What are the two types of changes that chemists are primarily interested in?

Chemists are primarily interested in studying physical changes, which involve a change in appearance or state of matter without a change in composition, and chemical changes, which involve a change in the chemical composition of a substance.


Is Melting does that changes as a physical or chemical?

It is a physical change because the chemical composition of the substance does not change.


How can you causes physicals change?

Physical changes are changes affecting the form of a chemical substance, but not its chemical composition.


Are all physical changes accompanied by a chemical change?

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.


Is freeze drying physical change or chemical?

Answer: It is a chemical change, it changes the actual composition of the object by removing water.