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When a substance undergoes a physical change, its identity remains the same, meaning its chemical composition does not alter. Examples of physical changes include melting, freezing, and dissolving, where the substance can typically return to its original state. The properties such as color, shape, and state may change, but the fundamental structure of the molecules remains intact.
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What happens to a substance in physical change?
it means figure it out yourself!
How do chemicals differ from physical changes?
When matter undergoes a chemical change, the composition of the matter changes. When matter undergoes a physical change, composition of the matter remains the same.
What two things are unaffected by a physical change?
In a physical change, the chemical composition of a substance remains unchanged, meaning its molecular structure is intact. Additionally, the identity of the substance remains unaffected; for example, ice melting into water is still H2O, just in a different state.
Can a physical change change what a substance is Explain your answer by giving an example?
No, a physical change does not change what a substance is; it only alters its form or appearance. For example, when ice melts into water, it remains H₂O in both solid and liquid states. The chemical composition remains unchanged, demonstrating that the identity of the substance is preserved despite the change in its physical state.
Is the evaporation of ether a chemical change?
No. Evaporation of ether or any other substance is a physical change as the identity of the substance remains the same.
What is the substance that undergoes a physical change but always stays the same?
a physical change is totally reversible, i.e, you can get the substance you will get back after some physical process like heating, evaporating, etc. thus the substance actually remains the same.
What happens to the identity of a substance when it makes a physical change?
there is to types of change to a substance chemical and physical in a physical change the result is a mixture also most times you can change your end result into what you started with e.g.freeze-melt evaporate-condesate
Physical properties are altered but the substance remains the same kind of matter?
Physical properties are characteristics that can be observed or measured without changing the composition of the substance. When physical properties are altered, such as when a substance changes state (solid to liquid), the basic chemical composition remains the same, indicating that it is still the same kind of matter.
What happens to a substance in physical change?
it means figure it out yourself!
Are broken pieces a chemical change?
No, it is a physical change as the identity of the substance remains the same. Broken glass is still glass.
How do chemicals differ from physical changes?
When matter undergoes a chemical change, the composition of the matter changes. When matter undergoes a physical change, composition of the matter remains the same.
What two things are unaffected by a physical change?
In a physical change, the chemical composition of a substance remains unchanged, meaning its molecular structure is intact. Additionally, the identity of the substance remains unaffected; for example, ice melting into water is still H2O, just in a different state.
Can a physical change change what a substance is Explain your answer by giving an example?
No, a physical change does not change what a substance is; it only alters its form or appearance. For example, when ice melts into water, it remains H₂O in both solid and liquid states. The chemical composition remains unchanged, demonstrating that the identity of the substance is preserved despite the change in its physical state.
What does the composition of a substance does not change?
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.
What happens when a substance undergoes a physical change?
During a physical change, the substance's chemical composition remains the same. It undergoes a change in physical properties such as shape, size, or state (solid, liquid, gas) without forming a new substance. Examples include melting, freezing, boiling, and dissolving.
Is the evaporation of ether a chemical change?
No. Evaporation of ether or any other substance is a physical change as the identity of the substance remains the same.
Is it a physical or chemical change when a substance changes form but it remains the same substance?
it would be physical change because physical change is when the substance stays the same
