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Depends on what you consider a physical change.
Substances change their density when they change their state of matter.
When the temperature rises, substances usually expand, wich leads to the density decreasing.
When the temperature falls, substances contract, increasing the density.
Exception would be water, as it shows an anomaly occurring near 273K
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∙ 12y ago
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Is the specific gravity of substance the same when the substance is in the solid state?
No. Roughly speaking, "specific gravity" is equivalent to density, i.e., mass divided by volume. If a substance changes its state, its volume will change, but its mass won't change - therefore, the density - the result of the division - will also change.
What happens when a substance changes state from a solid or liquid?
This change in the state of matter (liquid to solid) is called freezing.This change in the state of matter (solid to liquid) is called melting.They are physical change, the chemical nature of the molecules is not changed.
Does a substance change mass if it changes physically?
No. Mass is a measure of how much matter is in an object, and that does not change when the matter changes states. The matter will either contract or expand, depending on the current state and the state to be reached, but that does not change how much matter is in the object.
What happens to the density of a given substance if you increase the amount of substance that you have?
No change: Density is a property of the substance (physical property), which is not changed by the amount of substance.
How does the volume and density of a substance change when it is heated?
The volume of a substance increases when heated, causing a decrease in density.
The density of a substance undergoes the greatest change when the substance changes from a?
from a solid to gas
Why is dencity a physical change?
Density is classified as a physical property because the density of a substance can change when the substance changes state. Example: When water evaporates it is a physical change and the density changes. A chemical property is a property that describes its ability to react chemically with other substances and THEREFORE density is not a chemical property.
Is Density is a property?
Density is classified as a physical property because the density of a substance can change when the substance changes state. Example: When water evaporates it is a physical change and the density changes. A chemical property is a property that describes its ability to react chemically with other substances and THEREFORE density is not a chemical property.YES.
Is the density of a substance a physical property of the substance?
Density is classified as a physical property because the density of a substance can change when the substance changes state. Example: When water evaporates it is a physical change and the density changes. A chemical property is a property that describes its ability to react chemically with other substances and THEREFORE density is not a chemical property.YES.
Is the specific gravity of substance the same when the substance is in the solid state?
No. Roughly speaking, "specific gravity" is equivalent to density, i.e., mass divided by volume. If a substance changes its state, its volume will change, but its mass won't change - therefore, the density - the result of the division - will also change.
What are two physical properties that can vary even when the substance with these properties dose not change?
The density and state of matter (solid, liquid, or gas) of a substance can change with changes in external conditions even in the absence of any change in the substance itself.
Why does the density of a substance not change no matter how much of the substance you have?
Because density is a "ratio".
How can you change density of a substance?
You can change the density of a substance by changing its volume. Density is equivalent to mass over volume. So changing the volume affects density.
Why is a cooking an egg a chemical change?
it changes the whole appearance and physically changes the substance.
What does not change in solid matter?
Physical properties can be tested without changing the substance a new substance. Color, density, volume and melting and/or boiling point are examples of physical properties that can be observed and/or tested.
What is physically happening when water is dissolving a substance?
when we dissolve a substance then first of all there may occur physical change like shape,colour,temperature etc. these changes are called physical changes.
What happens when a substance changes state from a solid or liquid?
This change in the state of matter (liquid to solid) is called freezing.This change in the state of matter (solid to liquid) is called melting.They are physical change, the chemical nature of the molecules is not changed.
