If you fry an egg it turns white and goes solid is it a chemical reaction? well no it isn't a chemical reaction cos it can not be reversed back to what it was in the first place. it can also be known as physical reaction xx
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Yes, as long as the liquid changes to solid, it is considered a chemical change.
I am almost positive this would be a physical change. The yoke is still yoke, it has just changed forms. It's just like when water freezes, it is still water and is still H2O with not change in the chemical makeup.
FROM SophhXxX :REALLY? i didnt know that! are you sure this is true cos I really need it for my homework. thankyhuu x ;)This is an example of a physical reaction. The chemical makeup of the egg has not changed. It has merely changed forms, similar to watching water evaporate. The water is still H2O, just in a different form.
a chemical change. Because it involved the application of heat and it is not reversible.
Its physical because the chemical properities of it doesn't change.
Cooking noodles is a physical change because the noodles undergo a change in state from hard to soft through the absorption of water and heat, without forming new chemical compounds.
When melted butter solidifies in the refrigerator, it is a physical change. The butter is simply changing from a liquid state to a solid state due to the decrease in temperature, with no change in its chemical composition.
The thermal decomposition of baking powder is a chemical change.
Cooking an egg is both a physical and chemical change. The physical change involves the transformation of the egg from a raw to a cooked state, while the chemical change occurs as proteins in the egg denature and coagulate due to heat. The overall process involves both physical and chemical transformations.