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Q: Which event always involves a chemical change?
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Were to get Star Wars Autograph Signed?

You can always try an anual ComicCon or an event that involves Star Wars.


Is dicing potatoes a chemical change?

Slicing is pure mechanical, so physical but it is not a CHANGE but an ACTION or EVENT


What is a catylast?

a substance that increases the rate of a chemical reaction without itself undergoing any permanent chemical change. a person or thing that precipitates an event.


Which event is a chemical change the baseball strikes the roof or the roof of the car dents or the exposed metal rusts?

The rusting of the metal, the baseball hitting the roof is a PHYSICAL change


When paper turns yellow after a few weeks is it a chemical change or a physical?

Physical (I'm pretty sure). If there is no change in the formula/chemical makeup/etc. then the change is purely physical. If the newspaper ceased to be a newspaper and became something else, then it would be chemical.


What event involves dressing jumping and eventing?

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What is a sporting event that involves all of the countries of the world?

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Cooking a chemical or physical change?

Both of those processes are parts of cooking. It depends on what you're doing. If you're melting or freezing its a physical change. If you're changing it into another substance then its chemical. A chemical change is when a substance is changed into another entirely different substance. This happens when an event occurs that changes the composition of the substance. Examples of chemical changes are color changes, absorbing energy, releasing energy, odor changes, producing gases, producing solids, and can't be easily reversed. A physical change is when there is a change is physical properties. This happens when an event occurs that doesn't change their chemical. Examples of physical changes are changes in the texture, shape, size, color, odor, volume, mass, weight, and density.


Observable fact or event that involves human society?

An observable fact or event that involves human society is known as a social phenomenon. This includes anything that influences the behavior of each other in a society.


What involves the loss of all memory of an event or situation?

Amnesia