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No, at a different temperature and pressure the volume of any substance increases or decrease (depending on Temperature and Pressure). Also the severity of the volumetric change depends on the state of the substance. Because density=mass/volume and the volume changes while the mass doesn't the density WILL change slightly in solid phase, noticeably in the liquid phase and significantly in the gas phase regardless of weather or not the substance is pure
What else can I help you with?
Do pure substances have identical or diffrent particles?
Pure substances have identical particles. This means that all samples of a pure substance will have the same type and arrangement of particles, whether they are atoms, molecules, or ions. Examples of pure substances include elements and compounds.
Is The density of a substance is the same for all samples of the substance?
Not necessarily. The temperature of the samples would have to be the same. It can also vary with how pure the substance is.
A pure substance is the what throughout?
A pure substance is constant in composition throughout, meaning it is made up of only one type of particle or element. This distinguishes it from a mixture, which contains two or more different substances that are physically combined.
A droplet of pure mercury has a density of 13.6 gcm3. What is the density of a sample of pure mercury that is 10 times as large as the droplet?
The density of a sample of pure mercury that is 10 times as large as a droplet will remain the same at 13.6 g/cm3. Density is an intrinsic property of a substance that does not change with the amount of the substance.
What makes a material a pure substance?
A pure substance is a material that has a constant chemical composition and properties. It is made up of only one type of particle, such as an element or a compound, and cannot be separated into simpler substances by physical means. Examples of pure substances include water (H2O) and gold (Au).
The density of a substance is the same for all samples of the substances?
Density is simply the mass divided by volume. This means that it is the amount of the substance in a specific unit of space. Because a pure substance indicates that it is exactly that, a substance made of a specific combination of elements, it will always have the same density because those elements can only take one form in order for it to be pure.
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.
Will diffrent volumes of the same substance have the same density or different densities?
Different volumes of the same substance will have the same density. Density is an intrinsic property of a substance, which means it is constant regardless of the volume it occupies. This relationship is expressed by the formula density = mass/volume.
Would it be possible for two pure substances to have exactly the same set of properties?
Not if they are solid substances (ie one is not hollow in the middle). That was how Archamedies worked out how to prove the gold crown was pure gold. The density of every substance (mass per unit volume) is unique. * * * * * Not so sure about the density of EVERY substance being different. Every PURE substance: probably yeas. But every substance? For example, the density of steel can be varied from 7.75 gcm-3 to 8.05 gcm-3, by varying the proportion of the other materials in the alloy. Presumably there are some other substances with a density in that range.
What happens when a pure substances undergoes a chemical change?
when a pure substance undergoes a chemical change it is no longer that same substance. A chemical change changes the identity of the substance. Hope i helped
What cube has a greater density 35 centimeters or 70 centimeters?
If they both have the same substance inside, then they both have the same density. If they don't both have the same substance inside, then we have to know what the substances are before we can figure out anything about the density of the cubes. Size has nothing to do with density.
Do pure substances have identical or diffrent particles?
Pure substances have identical particles. This means that all samples of a pure substance will have the same type and arrangement of particles, whether they are atoms, molecules, or ions. Examples of pure substances include elements and compounds.
Is The density of a substance is the same for all samples of the substance?
Not necessarily. The temperature of the samples would have to be the same. It can also vary with how pure the substance is.
Can you convert a mixture to a pure substance?
Only if it is a compound, as a compound is a pure substance that can be broken down into simpler pure substances by chemicalmeans. The decomposition of a substance is a chemical process that breaks down a compound into simpler substances or its constituent elements. So, by definition, the answer is yes. However, if the pure substance was an element, the answer would be no. An element is a pure substance that cannot be broken down into any simpler substances by chemical means. It is a pure substance in which every atom present has the same atomic number.
What is the definition of pure substances?
A pure substance is a substance that consists solely of the same atoms/molecules.So a volume of water that contains only H2O is a pure substance. A block of iron that contains only Fe atoms is pure substance. A pure substance can be composed of atoms or molecules as I said before BUT they have to be exactly the same.A substance that has constant chemical composition and characteristics
A pure substance is the what throughout?
A pure substance is constant in composition throughout, meaning it is made up of only one type of particle or element. This distinguishes it from a mixture, which contains two or more different substances that are physically combined.
How can the property of density be useful as qualitative information about a specific substance?
Density information for a substance is useful because it is always the same regardless of the amount of substance there is. Take water for example. The density of water is same regardless if you have ten gallons of it or tablespoon of it. (1 gram/milliliter at STP). Since the density of a substance is always the same this property can exploited to determine the identity of unknown substances.
