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How do you know if a chemical change has occurred versus a physical one?
Wiki User
∙ 8y ago
If a new substance is produced.
Wiki User
∙ 8y ago
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Are tarnishing and rusting physical or chemical changes?
Something that tarnishes goes through a chemical change versus a physical change.
What is a physical change with examples?
A physical change is a change in which the appearance of an object changes but no chemical reaction takes place.EXAMPLES:CrushingMeltingEvaporationCondensation
What are the chemical properties of gases?
It might be better to rephrase the question as: What are the physical properties of a gas? The chemical properties of molecules are less a function of their phase than the chemical properties of the molecules themselves. The physical properties of a molecule in the gas phase versus the same molecule in the liquid phase would then be: Gases have higher diffusivity. Gases have lower viscosity. Gases are compressible. Gases have lower density. There are many other phyical property differences that could be cited.
Why when you burn paper it is a chemical change?
Because the paper undergoes a chemical change. When it is done it no longer is regular paper it is a whole different substance. Flammabilty or the ability to burn is always considered a chemical change.If you have a post it note, tear it in half. Does it stay the same? Yes. Now burn a post it note. Does it look the same? No. Is it still a post it note? No. It is now ash.chemical change
What physical trends for atomic number versus covalent radius?
Overall as atomic number increases covalent radius increases.
Are tarnishing and rusting physical or chemical changes?
Something that tarnishes goes through a chemical change versus a physical change.
How do you illustrate chemical change versus physical change in a venn diagram?
by drawing 2 circles and compare and contrast chemical and physical change
What is a physical versus chemical change?
A PHYSICAL CHANGE MEANS CHANGE IN EXTERNAL APPEARANCE .A CHEMICAL CHANGE MEANS THE CHANGE IN THE PARTICLES BY WHICH IT IS MADE up OF.Physical Changes are d changes which are reversible .In this change we can get the products back. eg-Mixing of water and salt ,we can get salt back .Chemical changes are d changes which are irreversible . In this change we cannot get the products back . eg- Burning of candle , we cannot get the matchstick back after burning .
What ideology was at the root of the revolutions that occurred in Europe in 1848?
Monarchy versus Republic.
What ideology was the root of the revolutions that occurred in Europe in 1848?
Monarchy versus Republic.
What ideology was at the root of the revolution that occurred in Europe in 1848?
Monarchy versus Republic.
What is a physical change with examples?
A physical change is a change in which the appearance of an object changes but no chemical reaction takes place.EXAMPLES:CrushingMeltingEvaporationCondensation
How do you make a versus level on LittleBigPlanet 2?
All you do is go to the level edit and change it to versus i think that's how it is.
What are the chemical properties of gases?
It might be better to rephrase the question as: What are the physical properties of a gas? The chemical properties of molecules are less a function of their phase than the chemical properties of the molecules themselves. The physical properties of a molecule in the gas phase versus the same molecule in the liquid phase would then be: Gases have higher diffusivity. Gases have lower viscosity. Gases are compressible. Gases have lower density. There are many other phyical property differences that could be cited.
When did the Olympic Games change metric versus imperial?
1972
Change in speed?
change in speed is acceleration. change in speed is the slope of the speed versus time graph, or the derivative of such.
When do you use I had versus I have had?
I had is used when describing an event occurred in the past and stopped there. I have had is to describe an action that was completed in the past but have continued into the present. Rex
