ok so I have 10 kg of wood and 0.6 kg of ahes remain after it gets burned. What happened to the number of atoms before and after and the arrangement of the atoms. Thank you guys so much!
2007-03-22 02:31:42 · 4 answers · asked by ♥ hey! 2 in Science & Mathematics ➔ Physics
Carbohydrates (complex arrangements of C,H,O) in the wood plus oxygen (o2) makes water (H20) and carbon dioxide (CO2)which float off into the air. The ashes are the left over impurities that didn't burn.
2007-03-22 02:38:22 · answer #1 · answered by Anonymous · 0⤊ 0⤋
The number of atoms is conserved, since this is a chemical and not a nuclear reaction.
In the wood, the atoms are arranged in molecules, mostly in the solid phase of matter, and mostly in the form of cellulose and other organic (carbon-containing) compounds. When these are burned in the presence of atmospheric oxygen, carbon dioxide is formed, which is a gas. Some of the incompletely burned material will go up as particulates in the smoke. Water vapor will also be released. The remaining ash will contain minerals (non-carbon molecules) and unburned or incompletely burned orgainc compunds from the wood.
2007-03-22 02:40:21 · answer #2 · answered by Jerry P 6 · 0⤊ 0⤋
When wood is burnt, it gets converted to carbon dioxide and water vapour--through which the atoms in 9.4 kg of wood disappears.
The reamaining atoms remain behind as 0.6 kg ash.
2007-03-22 02:37:01 · answer #3 · answered by ? 5 · 0⤊ 0⤋
I am not very good in physics and on top of that I left it 20 years ago. Hope my answer is able to put at least some light.
Energy just changes its form and never gets destroyed. So, while you were busy burning it, the atoms were getting themselves free to become gas from solid and maybe forming/ changing/ altering some combinations in the gaseous components of the air.
Hope, that helps.
2007-03-22 02:41:29 · answer #4 · answered by sanjay 4 · 0⤊ 0⤋