How come ashes turn white if I get them on black pants, but if I get them on my white pants they show as black?

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Example, yesterday I wore black pants and was smoking a blunt, and when I got ashes on my pants ,I rubbed them in, and there was a long white streak on my pants. My friend had a white shirt on and he got ashes on his shirt and when he did the same thing it showed as black. Why is that?

In: Chemistry

Pretty sure it’s that it’s different types of ashes. I mean if you look at something burning, its not just all black. It’s always got white, grey, and black so it might just be that you only see the contrasted type of ash on the right type of surface.

They’re grey ashes contrast equally with black and white. It’s just that the ashes are darker than white but lighter than black I think

Well this is simple, the ashes are black and white and you only see the opposite color when you rub it in. In the future blow them off your clothes or shake it away no smears that way.

Because they’re grey.

More accurately, because they’re a mishmash of dark and light particles so some of them show up no matter how light or dark the surface behind them is.

Ashes arent black or white. They’re both. You cant see the black ash particles on your black pants and cant see white ash particles on your white shirt.

Just like the hair on my black/white cat. You dont see the white hair on white clothes and the other way around.

Ash will show up grey in both colours….