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Ice floats because it is about 9% less dense than liquid water.
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∙ 6y ago
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Is Dry ice a pure substance?
there is a phase change that is water(liquid) is converted into ice now the question arrives that it is a pure substance or not? if its chemical composition is the same during the phase change then it is a pure substance otherwise not.
What is the temperature when the gas turns into a liquid?
This would be known as its boiling point because it is at the same point as when a liquid turns into a gas. Each substance has a different boiling point, for example, water's boiling point is 100oc.
Is obsidian a element compound or a mixture?
ice water is a mixture of solid water and liquid water. the two components are different phases of the same compund , namely water.
How are solids liquids and gases the same?
Most common sustsances, compounds or elements can occur in all the three states of matter: gas, liquid and solid. For example, water as a solid is called ice. As a liquid, it is called water. As a gas, it is called steam or water vapor. The answer is: liquid, solid and gas can be the different states of an element, a compound, or substance, or they can be same .
A liquid changes back into a solid by freezing at what point?
The FREEZING POINT ----- which for a pure substance (as opposed to a mixture)is the same thing as the melting point since they are both the point at which the liquid phase of a substance would be in equilibrium with the solid. For a mixture, the two would be different and you would get a freezing point range that started at the freezing point and ended at the melting point
Are water and ice the same substance or different substances?
Water and ice are the same chemical substance in different physical phases, liquid and solid respectively.
Is liquid water a water vapor?
No: Vapor is defined as the gas phase of a substance that is mostly solid or liquid at equilibrium at standard temperature and pressure. Therefore, a liquid itself is never a vapor, but the liquid is in equilibrium with a vapor phase that contains the same chemical substance.
What are the observable changes in freezing water?
liquid to solid
Is ice in a glass of water a substance or mixture?
if you are comparing the water and Ice then it is neither. they are both the same.From one point of view you have a mixture - even though they are the same - one is in the solid state and the other is in the fluid state.From another - its an homogeneous substance since they are the same element.To be literal as to your question: which is about the ICE itself and the water is not actually the substance in question. With that then the Ice is a substance and as long as it is ICE is is not mixing with the water. When the state changes from solid to liquid the melted liquid has become the other substance and is no longer ICE.
Is Dry ice a pure substance?
there is a phase change that is water(liquid) is converted into ice now the question arrives that it is a pure substance or not? if its chemical composition is the same during the phase change then it is a pure substance otherwise not.
How can ice water and steam be three states of a substance and not different substances?
Well you can prove they are the same substance by experimenting. If you boil liquid water it turns into steam and if you then cool the steam, it turns back into liquid water. If you cool liquid water it will freeze and turn into ice and then if you warm the ice it will melt and tun back into liquid water. Thus the common substance in all three states is the water. ------------------------------------------------------------- In general substance are either solid, liquid or gaseous at normal temperatures and pressures and if you heat the solids they will turn into liquid then gas and if you cool the gases they will tun into liquid and then solids. Solid, liquid and gas are 3 of the possible states of matter (there are other states possible)
What is the temperature when the gas turns into a liquid?
This would be known as its boiling point because it is at the same point as when a liquid turns into a gas. Each substance has a different boiling point, for example, water's boiling point is 100oc.
Are the melting point of solid and freezing point of liquid of a substance different?
yes the melting point of solid and freezing point of liquid of a substance is differ but in the case of water the melting and freezing point is same.
If 1 liter of substance weighed 1 kilogram what would the substance be?
A substance with approximately the same density as water.
Is specific gravity of ice is same as water?
It's possible for a solid to have the same specific gravity as a liquid. In general, though, no. Solid and liquid forms of the same substance almost always have different specific gravities (and most often the liquid is less dense; water is one of the few where the liquid is more dense).
Are the melting and freezing of a substance the same?
Yes. A substance melts and freezes at the same temperature. Melting is as it changes from solid to liquid, freezing is from liquid to solid.
Are gas molecules further apart than solid molecules and liquid molecules?
Generally, the molecules in gases are further apart than molecules of the same substance in either liquid or solid state. However, note the existence of a critical temperature for each substance. Above the critical temperature, no liquid or solid phase can exist, but it would be theoretically possible to compress a supercritical substance so that it would have closer molecules than some liquid form of the same substance.
