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when the things have been change in color or size its already known that its a chemical but if it is the same size and color it still physical
Wiki User
∙ 11y ago
Wiki User
∙ 12y agoBasically, check if a new substance was formed.
A chemical change will produce a new substance, but it can be hard to tell, but by using this method, you will be quite accurate.
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Is breaking a ceramic plate physical change?
Actually breaking a dinner plate is not a chemical change. A chemical change is like putting sugar into a hot cup of water or tea.
Is decaying matter a physical or chemical change?
It's a chemical change. A chemical change is any change that causes a substance to change into another substance. A sign to know whether it's a chemical change or not, are the changes in odor. When something decays the change in smell is very powerful. Therefore, it is a chemical change.
What are examples of physical chemical and nuclear change in the same matter?
Physical change: Water freezing into ice Chemical change: Water being broken down into hydrogen and hydroxide ions after the addition of a pure metal.
Is table salt boiling a physical or chemical change?
Physical. It would seem logical to assume that this is a chemical change but since neither the composition of salt (generally NaCl [sodium chloride] in this case) nor the composition of water changes, it is actually a physical change rather than a chemical change.There are 4 ways to indicate if a chemical change has occurred:1. There is a temperature change (endothermic = cooler, exothermic = warmer).- There would be no significant temperature change in the process of distilling the water independent of applying heat to the substance.2. There is a change in hue (color); this does not include changes in tint (darker to lighter) or saturation (lighter to darker [shade]).- There would be no change in hue of the solution after the distillation of salt water takes place.3. A precipitate was made (solution becomes cloudy), meaning a solid was made.- The solution does not become cloudy, meaning no solid was created (all components involved are soluble).4. A gas was formed, which is indicated by the formation of bubbles independent of the influences of stirring (bubbles rising occurs persistently after a few minutes or so).- No gas is formed in the process of distilling the salt water.
Can we get burnt paper back to its original form?
No it can't, because it would have undergone a chemical change, which is not easily reversible. so it is highly unlikely that it would. In addition, if burnt paper is touched, it would only crumple and turn to ash. Thus, your brilliant answer.
How do you know if a chemical change has occurred versus a physical one?
If a new substance is produced.
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.
How we know a chemical change has occurred when burning a candle?
Burning is a chemical reaction, an oxydation.
Is grilling a burger a chemical or physical change?
Well, grilling the bread is a chemical change, but the melting cheese I believe is a physical change.
What is lightning a candle a physical or chemical change?
chemical
Is transferring graphite from pencil to paper when writing a chemical or physical change?
physical change. You know that it is a physical change because it can be reversed. An example of a chemical change would be cooking an egg. Because you cannot reverse the process.
Is slicing a banana a physical change or chemical change?
It's a physical change, because no chemicals are changing if I cut a banana.
Is hydrofluoric acid attacking glass a physical or chemical change?
Does anyone know
How do you know that baking bread is a chemical change and not a physical change?
Its a chemical change because its changing what it is (from dough to bread)
Is cutting your hair a chemical change or a physical change?
cutting your hair is probably a physical change I don't know
Why is it diffifult to make a list of simple rules that will let you classify a chemical and phyiscal change?
It is not that difficult if you know the difference between a chemical and physical change. A physical change is reversible and a chemical change is not. In a physical change a new substance is not formed. The breaking of glass is not reversible and is physical.
Is drying cloths is chemical change?
It is a Physical Change because i dont know but im sure that is a physical change :P
