Physical and chemical changes | Chemical reactions | AP Chemistry | Khan Academy

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[draxy]

HE DOES SCIENCE TOO! Wow i love this man.

[sciencenerd]

I really appreciate that you included the example of dissolving salt and how it is a grey area. Great video, excellent explanation.

[dionthomas]

Great science lesson on physical and chemical changes on objects from ice to water, from cold to hot

[abdulrafiusalaujr]

Nice tutorial
Would you classify NaCl as a physical or chemical change?

[uzmamujeeb]

@khanAcademy turning of paper to ash is physical change or chemical change

[YouTubeShorts-gvlj]

you have khan academy we have khan sir 😁

[marblesanimations]

Woah- I might be first or not because ya but... Hope you are all having a great day!!

[kashiffiroze]

Why is you screen background is always blac. It is not friendly