0
The composition of a substance remains constant if the chemical bonds that hold the atoms together are not broken. This means that the types and numbers of atoms present in the substance do not change, even if it undergoes physical changes like melting or boiling.
Add your answer:
Earn +20 pts
In a physical change some of the physical properties of the substance may be altered and the chemical composition?
In a physical change, the chemical composition of the substance remains the same, but some physical properties like shape, size, or state may change. This means that the substance can be reversed back to its original state without undergoing a chemical reaction.
What does not change when a substance changes matter?
The chemical composition of the substance does not change when it changes its state of matter. The arrangement of atoms and molecules may vary, but the elements present in the substance remain the same.
Is it true that if a physical change that occurs when a substance changes composition by forming one or more new substances?
No, that statement is incorrect. A physical change does not involve changing the composition of a substance or forming new substances. It only alters the physical state or appearance of a substance without changing its chemical composition. When a substance changes composition and forms new substances, it is considered a chemical change.
Does the composition of a substance always stay the same?
No, the composition of a substance can change through chemical reactions. During a chemical reaction, bonds between atoms can break and new bonds can form, resulting in a change in composition.
What two things are unaffected in physical change?
The chemical composition is not changed.
When there is a change in the chemical composition of a substance its called a?
Chemical Substance
What is the most important thing you need to remember for a physical change?
The most important thing for your to remember is that in a physical change the composition of a substance does not change and in a chemical change the composition of a substance does change.
In a physical change some of the physical properties of the substance may be altered and the chemical composition?
In a physical change, the chemical composition of the substance remains the same, but some physical properties like shape, size, or state may change. This means that the substance can be reversed back to its original state without undergoing a chemical reaction.
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 doesnt change during the composition of a substance?
The composition of a chemical compound is not changed during a physical change.
What does not change when a substance changes matter?
The chemical composition of the substance does not change when it changes its state of matter. The arrangement of atoms and molecules may vary, but the elements present in the substance remain the same.
What is called when a substance undergoes a change but its identity or composition not change?
a chemical change
Is it true that if a physical change that occurs when a substance changes composition by forming one or more new substances?
No, that statement is incorrect. A physical change does not involve changing the composition of a substance or forming new substances. It only alters the physical state or appearance of a substance without changing its chemical composition. When a substance changes composition and forms new substances, it is considered a chemical change.
Physical Change?
Changes of the matter that do not change the composition of the substance.
A change during which the basic composition of the substance is not altered is?
Physical Change
A change duing which the basic composition of the substance is not altered is a?
is a physical change
Do freezing forms a new substance?
No, freezing does not form a new substance. It is a physical change where a substance changes from a liquid to a solid state without altering its chemical composition.
