I'm 16 I study chemistry in college along with biology physics and maths, and I have a general interest in all of them I always found this interesting, sometimes when I left the bathtub, even when I forgot to use soap, the bath would still have a somewhat noticable, murky tint in the water, indic...

I have heard in various situations people use a wet fabric to breathe better in situations where a lot of fire-based smoke is present (like near wildfires). I wanted to know if there was any truth to this, specifically with regard to wet fabric vs dry fabric. A quick Google search brought me to t...

Iron rusts and the earth is pretty old, so how is it that there is still iron left that has not oxidized(/rusted)? I tried looking it up, and the amount of iron on earth is mind boggling, but is that it? Is there simply enough iron that not all of it has oxidized yet? Maybe it's just that well in...