When a white powder is heated, it produces a colourless gas& a black solid.Is the white powder an element?why?
thank you guys. pce :)
- PaulLv 61 decade agoFavorite Answer
Since the white powder is producing multiple products, it is unlikely to be an element. Since elements have only 1 type of atom in them, forming two different compounds would be highly unlikely.
The only way this would be possible is if the element was reacting with something in the air. Even then, getting two products out of that would be very, very difficult.
- reb1240Lv 71 decade ago
This is clearly a decomposition reaction. This means that a compound is breaking down into simpler compounds, or elements, due to the heat.