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How could you prove that grinding a bar of iron into a powder is not a chemical change?
Wiki User
∙ 10y ago
You can prove that isnt a chemical change because it is just a change of appearance which is considered a physical change.
Wiki User
∙ 10y ago
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When milk spoils it smell bad is this a physical change or chemical change?
It is a chemical change because you cannot not make the smell go away, if you could it would be a physical change
When you mix a pink powdered substance in water and mix it is that a chemical change?
Mixing is not itself a chemical change. There could be one occurring as a result, but nothing you described indicated any kind of chemical change.
What slowly change earth crust?
Weathering, chemical change, and mechanical change. I hope i could help.
Is dissolving salt in water a physical or chemical change and why how could you verify your answer?
physical change- solid to solution
What is the différence between a chemical change and a physical change?
physical changes are thing you can see (note a change in color could be a percipatate forming) chemical release energy in some way shape or form or it could form a perciapte which you can't see through
Is baby powter yummy?
Baby powder is not yummy at all. Alkali is a chemical in baby powder. It is not safe to eat the baby powder, it could be poisonous!
Is tarnisha physical change or chemical change?
Well it could either be a physical change OR a chemical change. .
Could the identity stay the same in chemical change?
No. If one substance does not change into another, it is not a chemical change.
Is painting wood a phyical or chemical change?
I guess it could be chemical, but really- it's a physical change
How could you prove to someone that the dissolving was a physical to change not a chemical change?
You could separate it all out.
How is dissolving coffee powder a reversible change?
You could dehydrate the coffee, turning it back into powder.
Can energy be changed into chemical energy durning a chemical change?
Yes it could
What change could happen during a chemical reaction?
the chemical shall be changed
What results after a chemical change?
A chemical change produces a form of matter that was not there before. Evidence of a chemical change could be changes in temperature, color, smell, and the production of a gas or a precipitate.
Is it correct to say that dissolving a packet of juice powder in water makes a new substance such as fruit punch so it must not be a physical change?
The change is a physical one because the powder is simply dissolving into the water, and it could be powdered again by removing the water again. The physical properties of the fruit punch are very different, but not a chemical change unless there is a new substance created or precipitated.
When milk spoils it smell bad is this a physical change or chemical change?
It is a chemical change because you cannot not make the smell go away, if you could it would be a physical change
Why is glass breaking a physical change?
Besides for rearranging the glass pieces, one is not actually changing the chemical formula of the glass. Much like grinding NaCl, the crystals get smaller but the chemical remains the same.
