Answer:buckled railroad tracks on a hot day
Explanation: i just did it
Answer:
irreversible changes
Explanation:
Most chemical changes are permanent and cannot be reversed. That is because a chemical change involves changing the molecular composition which can't be reversed. A common example of a chemical change would be burning wood. The wood burning into ash is changing the molecular composition of the wood transforming it to ash. Now can ash be changed back into wood? No, it is a "irreversible change."
Hope this helps.
Answer: 1031.33 kg of coke will produce 6400 kg of iron.
Explanation:
...(1)
...(2)
(1)+3 × (2)
...(3)
Mass of iron = 6400 kg = 6,400,000 g(1 kg = 1000 g)
Moles of iron =
According to reaction (3) , 4 moles of iron are produced from 3 moles of coke(C(s)) ,then 114,592.65 moles of iron will be produced from = moles of coke.
Mass of coke:
Hence, 1031.33 kg of coke will produce 6400 kg of iron.
I don't think it's any of the above. Because there is two double carbon bonds and it belongs to an alkene, it should be an ethene molecule.