0
What else can I help you with?
Does volume change when substance changes states?
Yes. Usually when a substance freezes, or becomes a solid, it will decrease in volume, causing an increase in density. Water is an exception, which is less dense when it freezes/becomes solid.
The fundamental density is the ratio of the mass of a substance to its volume this is known as what?
its density. note. density is often expressed as the ratio of the density of the substance to the density of water at standard temperature and pressure. This is known as the specific gravity of the substance. It is a dimensionless number so it has no units.
What are two reasons why density is a useful property for identifying substances?
Density is specific for each substance. Also the measurement is generally simple.
Determines if an object will float or sink in a fluid?
Density. An object will float in a substance if its density is less than the density of the substance. The density of water is 1 kg /L or 1 g/ cm3. Anything with a density less than this will float.
A solid has a volume of 24cm3 and a mass of 60g. What is the density?
The density of a substance is often expressed in units of grams per milliliter. If a substance with a volume of 60 ml weighs 85 grams the density is found by dividing the weight (85g) by the volume (60ml). This substance has a density of 1.42g/ml
What changes over time with density?
density changes when the substance changes.
What kind of changes in substance are always physical changes?
each substance has a density that differ from the densities of other substance.
Does a substance change density if it changes physically?
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
What happens when a substance changes state from a solid or liquid?
When a substance changes state from a solid to a liquid, it undergoes melting where it gains enough energy to break the bonds holding its particles together. When it changes from a liquid to a gas, it undergoes vaporization where it gains enough energy to overcome the forces of attraction between its particles.
What is the property that is a quality of a substance that never changes and can be used to indentify the substance?
A quality of a substance that never changes is one of the reasons why density is a characteristic property
What happens to density when it changes state?
When a substance changes state, its density can change. For example, when a substance transitions from a solid to a liquid state, its density usually decreases. Conversely, when a substance transitions from a gas to a liquid state, its density typically increases.
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 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.
How is the density of a pure substance affected if the mass and or volume are changed?
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.
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.
Why is density characteristic property?
Density is a Characteristic Property because it is A quality of a substance that never changes and can be used to identify the substances.
Boiling point melting point and density are some of an elements what?
Boiling point is the temperature at which a substance changes from a liquid to a gas, melting point is the temperature at which a substance changes from a solid to a liquid, and density is a measure of how much mass is contained in a given volume of a substance.
