0
physical
Apollo Mitchell
Add your answer:
Earn +20 pts
What is the difference between physical and chemical changes of matter?
Usually a physical change can be reversed such as fruit rotting. where as chemical change is very hard to reverse such as rust
Is sanding wood is a physical or chmical change and why?
It is physical change. There are no chemical reactions taking place when you sand wood.
Is hard boiling an egg physical or chemical?
It is changing from a liquid to a solid so it is chemical change.
Is hammering wood together to build a playhouse a chemical change or a physical change?
It would be a physical change because you are changing the shape of the wood not the chemical composition of the wood. However, you could possibly create a chemical change if you could hammer hard and long enough to burn the wood. Not likely, but it is possible.
Is the setting of concrete a physical or chemical change?
It's a physical change.It's a chemical change. The concrete hardens through a chemical reaction called hydration :)Its a physical change. The Chemical change already happened when the water was added. The concrete powder became hydrated turning it into usable concrete.
Is a given change a chemical or a physical change?
It depends. Physical can be easily reversed. Chemical is hard, if not impossible to reverse.
When water and concrete mix are combined the material becomes warm and a hard solid forms so Is this a physical change or a chemical change?
This is a chemical process: a hydration reaction occur.
Are physical and chemical change different?
Physical change does not produce a new substance. Chemical change produces a new substanceIn a chemical change the atoms/molecules are chemically joined together so they are very hard to separate. were as they are easyer to separate in a physical change
Boiling an egg is a chemical or physical change?
it is a physical change because it would be hard to revers
Is melting butter a physical change or chemical change?
As you may know, determining whether a change is chemical or physical can sometimes be a real pain! This particular change is a hard one. If your talking about butter slightly melting on a hot day because it was left out on the counter, THAT is a physical change and is reversible by simply putting the butter into the fridge. However, melting butter on the stove and having it completely turn to liquid and turn a little brown, THAT is a chemical change and is hard to reverse... a chemical change has occurred while the butter was over the heat.
What is the difference between physical and chemical changes of matter?
Usually a physical change can be reversed such as fruit rotting. where as chemical change is very hard to reverse such as rust
Is sanding wood is a physical or chmical change and why?
It is physical change. There are no chemical reactions taking place when you sand wood.
Is hard boiling an egg physical or chemical?
It is changing from a liquid to a solid so it is chemical change.
Is a boiling egg a physical change?
No, hard-boiling an egg is a chemical change. By cooking the egg you change its chemical composition.
Is hammering wood together to build a playhouse a chemical change or a physical change?
It would be a physical change because you are changing the shape of the wood not the chemical composition of the wood. However, you could possibly create a chemical change if you could hammer hard and long enough to burn the wood. Not likely, but it is possible.
Is hard water staining pipes a physical change?
Formation of these salts is a chemical process.
Is butter turning hard when cooled a physical change?
Yes, whenever a substance changes its physical form without changing the chemical composition, it is considered a physical change. In this case, liquid butter turning hard does not become a different substance, so it is a physical change.
