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Why does samples of platinum and copper can have the same extensive properties but not the same intensive properties?
Samples of platinum and copper can have the same extensive properties but not the same intensive properties for a couple of reasons. These are both metals but have differing numbers of electrons.
What properties do nanoscale particles have that are different than those of macroscopic samples of the same substance?
Nanoscale particles have a higher surface area-to-volume ratio, leading to increased reactivity and different optical, electronic, and magnetic properties compared to macroscopic samples. They also exhibit quantum confinement effects due to their small size, resulting in unique behaviors that are not observed in larger samples of the same substance.
Why are all samples of a given substance have the same intensive properties?
The properties of a pure substance do not vary from sample to sample because there is no reason for them to. Why would they? Water is water, and if you take any sample of water from any stream, lake or ocean and remove all the "stuff" in it to leave only the water, all the samples will behave the same way physically and chemically. The chemical properties of a substance (and the physical ones, too) are set by what the substance is. And these properties define the way the substance behaves in the universe as a whole. There is no reason for any water found on, say Mars, to behave any differently than any water here on Earth - or anywhere else in the universe.
Which is not a characteristic of a compound-?
Different samples of a compound do not have different properties.
The density of an substance varies with samples of that substance?
Yes, the density of a substance can vary depending on factors such as temperature, pressure, and the purity of the material. Small differences in the arrangement of molecules or the presence of impurities can lead to variations in density between samples of the same substance.
What physical and chemical properties would you expect to find in two different samples of a pure substance?
Two different samples of a pure substance would have the same physical properties, such as color, melting point, boiling point, and density. Their chemical properties, like reactivity and ability to form specific compounds, would also be identical. Variations in the samples' properties could indicate impurities present.
Why feather samples weigh more than iron samples?
Because physical properties have a lot more resistance than chemical properties. Thickness is a physical property because it doesn't have reactivity. If I took a shoe and threw it at my friend, he would grow a bump on his head. That would be a physical property. The same thing applies here. A Feather is a chemical substance, and Iron is a physical substance. A Feather is more dense, and has less mass. Iron is less dense, and has more mass. The answer is simple: Different subsctances have different melting points and boiling points, therefore feather samples weigh more than iron samples.
Why can samples of gold and copper have the same set of physical properties but not the same set of chemical properties?
They do not have the same set of physical properties. At the very least they have different melting and boiling points, and different densities, and their colors are not identical.
Why does samples of platinum and copper can have the same extensive properties but not the same intensive properties?
Samples of platinum and copper can have the same extensive properties but not the same intensive properties for a couple of reasons. These are both metals but have differing numbers of electrons.
Samples of both properties physical properties?
Physical- Something PURE. Chemical- Something that contains OTHER things.
What properties do nanoscale particles have that are different than those of macroscopic samples of the same substance?
Nanoscale particles have a higher surface area-to-volume ratio, leading to increased reactivity and different optical, electronic, and magnetic properties compared to macroscopic samples. They also exhibit quantum confinement effects due to their small size, resulting in unique behaviors that are not observed in larger samples of the same substance.
Why are all samples of a given substance have the same intensive properties?
The properties of a pure substance do not vary from sample to sample because there is no reason for them to. Why would they? Water is water, and if you take any sample of water from any stream, lake or ocean and remove all the "stuff" in it to leave only the water, all the samples will behave the same way physically and chemically. The chemical properties of a substance (and the physical ones, too) are set by what the substance is. And these properties define the way the substance behaves in the universe as a whole. There is no reason for any water found on, say Mars, to behave any differently than any water here on Earth - or anywhere else in the universe.
Which is not a characteristic of a compound-?
Different samples of a compound do not have different properties.
The density of an substance varies with samples of that substance?
Yes, the density of a substance can vary depending on factors such as temperature, pressure, and the purity of the material. Small differences in the arrangement of molecules or the presence of impurities can lead to variations in density between samples of the same substance.
Why do properties of a pure substance do not vary from sample to sample?
The properties of a pure substance do not vary from sample to sample because there is no reason for them to. Why would they? Water is water, and if you take any sample of water from any stream, lake or ocean and remove all the "stuff" in it to leave only the water, all the samples will behave the same way physically and chemically. The chemical properties of a substance (and the physical ones, too) are set by what the substance is. And these properties define the way the substance behaves in the universe as a whole. There is no reason for any water found on, say Mars, to behave any differently than any water here on Earth - or anywhere else in the universe.
Do you agree that all homogeneous matter can be classified as pure substance?
Yes, all homogeneous matter can be classified as a pure substance because it has a uniform composition throughout. This means that all samples of the matter have the same properties and composition, making it a pure substance.
Is manganese homogeneous or heterogeneous?
Manganese is a chemical element that typically exists as a pure substance, so it is homogeneous. This means that all samples of manganese should have uniform properties, such as composition and physical characteristics.
