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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.
When a chocolate bar melt in the sun is that a physical change or a chemical change?
When a chocolate bar melts in the sun, it is a physical change. This is because melting is a reversible process in which the chocolate changes from a solid to a liquid state due to the increase in temperature. No new substances are formed during this process, making it a physical change rather than a chemical change.
How do you know if a chemical change has occurred versus a physical one?
A chemical change results in the formation of new substances with different chemical properties, such as changes in color, odor, or the formation of gas or precipitate. A physical change, on the other hand, only affects the physical state of a substance, without changing its chemical composition.
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.
What is lightning a candle a physical or chemical change?
chemical
Is hydrofluoric acid attacking glass a physical or chemical change?
Does anyone know
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.
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
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 making ice cream a physical change?
no its a chemical change (i just did i project on making ice cream in meh class and one question was "is this a chemical or physical change? how do u know?"
Is a log burning a chemical or physical change?
Chemical change, because it is irreversible. The chemical composition of the substance actually changes. A physical change is a change of state, like water to ice. There, H20 is still H20.
A substance that undergoes a chemical change is still the same substance after the change?
i want to know the answer.............................................................................................................................................................................. .................................................................................................................................. ................................................................................................................................................ .................................................................................................................................................... ................................................................................................................................. ...................................................................................................................................... but I don't!
