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A student is given a small amount of unknown tan-colored liquid substance. This unknown liquid is placed into a glass of water and mixed. Despite mixing the tan liquid remains separated from the water?
Wiki User
∙ 7y ago
The unknown tan-colored liquid may be immiscible in water, meaning it does not mix or dissolve in water. This could be due to differences in polarity or solubility between the two substances. Further testing and analysis would be needed to identify the specific properties of the unknown substance.
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Is dissovling a physical change?
Dissolving is considered a physical change because the substance's chemical composition remains the same before and after dissolving. The molecules are simply separated and dispersed within the solvent, forming a homogeneous mixture.
What two things are unaffected in physical change?
The chemical composition is not changed.
True or false the temperature of a substance changes during a change in state?
False. The temperature of a substance remains constant during a change in state until all of the substance has completed the phase change.
Is when it remains unchanged in the presence of nitrogen chemical or physical?
When a substance remains unchanged in the presence of nitrogen, it is likely due to its chemical inertness to nitrogen. This can be a result of the substance's molecular structure or its lack of reactivity with nitrogen molecules. Physical properties, such as solubility or vapor pressure, can also play a role in determining whether a substance remains unchanged in the presence of nitrogen.
Which substance remains a liquid over a largest temperature range?
Water remains a liquid over a large temperature range.
What separates solutions based on boiling points when one substance remains a solid?
Solids are separated from liquids with many methods - for example by filtration.
What type of substance can be separated up into similar substances?
Generally speaking, yes but ...It depends on what the substance is and what you want to separate.If the substance is a mixture of sugar and water then the water can be evaporated off and the sugar remains behind.Water, H2O, itself is not a mixture but a pure substance and it, too, can be separated into hydrogen and oxygen by running an electrical current through it to break the bonds in the molecules.Some substances like paint can have its components forensically determined by running a sample through a gas chromatographwhich will analyse the components of the paint to determine which brand it is which batch it came from and maybe help solve a crime. The gas chromatograph is used for small samples and does not separate larger samples back into its components.
Does boiling point is a physical change or property?
Boiling point is a physical property of a substance, as it is a characteristic of the substance that remains constant despite changes in its physical state. When a substance reaches its boiling point, it changes from a liquid to a gas through the physical process of boiling.
What substance is form when wood burn?
The substance is otherwise known as paleodiecius its like smoke but its a visible substance not a smellable substance it looks like ash only it remains red during and after the burning and remains red until destroyed!
What is a biodegradeable substance?
A substance that could be dissolved in soil, such as organic substances(food remains, fossils...)
Is dissovling a physical change?
Dissolving is considered a physical change because the substance's chemical composition remains the same before and after dissolving. The molecules are simply separated and dispersed within the solvent, forming a homogeneous mixture.
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.
What are preserved remains of an organism?
Preserved remains of an organism are most commonly referred to as fossils. But preserved remains can also be in amber (sap like substance).
What of a substance remains constant regardless of where you go in the universe?
The speed of light remains constant regardless of where you are in the universe.
Is it a physical or chemical change when a substance changes form but it remains the same substance?
It is a physical change. In physical changes, the substance's physical properties change (such as shape or state), but the chemical composition remains the same.
Does a density of the same substance vary or not?
No, the density of the same substance does not vary. Density is a physical property of a substance that remains constant regardless of the amount or volume of the substance.
What happens to a temperature of a substance while a changing of state occurs?
As a substance changes state, the temperature remains constant.
