Friday, September 23, 2011

Give an example of a chemical change in every day life?

a chemical change is anything that cannot be returned to its original state.



for example:



poaching an egg (you can't get the uncooked egg back)



toasting bread (same thing, can't get the bread back)



something a bit different...metal rusting









examples of what aren't:



melting butter (this is a physical change as the butter can return to its solid state)



boiling water (again a physical change as the steam can condense and return to its liquid state)Give an example of a chemical change in every day life?Water to PeeGive an example of a chemical change in every day life?when enzymes make your food soluble so you can digest it