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.
y=mx+b
The correct answer is B) Most of the original mass of the tree was destroyed and all that was left was the 10 kg ashes.
When a tree burns, it undergoes a chemical reaction known as combustion. During combustion, the tree is heated to a high temperature, which causes the organic compounds in the tree to break down and react with oxygen in the air. This reaction releases energy in the form of heat and light.
During the combustion process, the tree's organic compounds undergo oxidation, which means they combine with oxygen to form new compounds. This process releases carbon dioxide, water vapor, and other combustion byproducts into the air. Some of the released gases may also escape as smoke.
As a result of combustion, a significant portion of the original mass of the tree is converted into gaseous byproducts that are released into the atmosphere. Only a small fraction of the tree's mass remains as solid residue, which in this case is the ashes. Therefore, the remaining mass of the ashes after the burn is much smaller, weighing only 10 kg, compared to the original 300 kg of the tree.
It is important to note that new matter is not created during this chemical reaction (option A). The law of conservation of mass states that mass cannot be created or destroyed during a chemical reaction. Rather, the mass is conserved, but it may change form or be redistributed among the products and reactants. In the case of the burning tree, most of its original mass is transformed into gaseous byproducts, leaving behind only a small amount of solid residue (ashes).
can you shut up about pee
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.