In changes in which the molecular structure of a substance remains constant, such as changes of state, we often refer to these changes as Physical Changes. If the molecular structure is altered it would be a Chemical Change.
When a substance freezes, its physical state changes from liquid to solid, but its chemical composition remains the same. For example, water freezes into ice, and both have the same molecular structure (H2O). However, the arrangement of molecules changes, affecting properties like density and rigidity. Thus, while the form changes, the underlying chemical identity does not.
it would be physical change because physical change is when the substance stays the same
As a substance changes state, the temperature remains constant.
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.
No, the change from liquid to gas is a physical change, not a chemical change. In this process, the substance's molecular structure remains the same, only its physical state changes from liquid to gas.
When a substance freezes, its physical state changes from liquid to solid, but its chemical composition remains the same. For example, water freezes into ice, and both have the same molecular structure (H2O). However, the arrangement of molecules changes, affecting properties like density and rigidity. Thus, while the form changes, the underlying chemical identity does not.
it would be physical change because physical change is when the substance stays the same
As a substance changes state, the temperature remains constant.
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.
Copper sulfate dissolving in water is a physical change because the chemical composition of copper sulfate remains the same. Physical changes do not alter the chemical structure of a substance.
it would be physical change because physical change is when the substance stays the same
it would be physical change because physical change is when the substance stays the same
The density of a pure substance remains constant regardless of changes in mass or volume. Density is a physical property that is inherent to a substance and is calculated as mass divided by volume. As long as the substance remains the same, the density will not change.
The temperature* remains unchanged. * The heat (energy) content changes.
No, the change from liquid to gas is a physical change, not a chemical change. In this process, the substance's molecular structure remains the same, only its physical state changes from liquid to gas.
The temperature* remains unchanged. * The heat (energy) content changes.
Water goes from a liqiud to solid cooler tempeture Remains the same substance