All of the answers sound like gobbledegook to me. Here is what happens.
When a tree burns some of the mass goes up in smoke as CO2 gas and H2O vapor. Some of the other elements in the tree are oxidized and contribute to the ash. What's left are materials that can't be converted to gaseous products during the burning process.
A 300 kg tree burns to the ground, leaving only ashes. The weight of the ashes after the burn is 10 kg. Explain these results.
A) The remaining ashes were newly created mass from the old 300 kg tree. This is how new matter can be created during a chemical reaction.
B) Most of the original mass of the tree was destroyed and all that was left was the 10 kg ashes.
C) After the chemical reaction took place, some of the resulting mass turned into smoke and was released into the atmosphere.
D) During a chemical reaction, some of the matter is subtracted due to the energy being gained by the fire. This will result in only 10 kg of remaining product.
3 answers
can you shut up about pee
y=mx+b
1 answer