2006-10-22 07:59:17 · 14 answers · asked by alexandra1579 2 in Science & Mathematics ➔ Chemistry
The mass will not change. Mass is simply a messure of the amount of matter in an object.
2006-10-22 08:10:07 · answer #1 · answered by GuZZiZZit 5 · 0⤊ 1⤋
Mass cannot be created or destroyed. You are neither adding or removing any copper by heating it. Sure the copper might oxidise and change colour but the mass will not change.
However, it may be worth noting that if you heat copper it will oxidise and therefore lose electrons. Electrons have a tiny tiny mass and therefore the copper will way ever so slightly less due to fewer electrons but this wouldnt be taken into account as the change in mass would be negliable.
So the correct answer is that the mass doesnt change upon heating
2006-10-23 08:45:40 · answer #2 · answered by Anonymous · 0⤊ 0⤋
Come on people. This is clearly a poorly worded attempt at asking what happens when copper is heated in air so much that it reacts with the oxygen in the atmosphere to produce Copper (II) Oxide.
People are correct to say the actual mass of copper remains the same. However, the sheet of copper you started with will weigh more after intense heating because the outer layer is no longer copper element (Cu) but Copper oxide (CuO) which has a higher molecular mass
2006-10-22 11:25:03 · answer #3 · answered by Anonymous · 3⤊ 0⤋
The mass of the copper atoms will stay the same, but some of them, on the surface, will combine with oxygen:
2Cu + O2 ---> 2CuO
So the piece of copper will increase in mass, but only by the same amount as the atmosphere has decreased.
The Law of Conservation of Mass is obeyed, even if it doesn't appear to be.
2006-10-25 08:41:53 · answer #4 · answered by Gervald F 7 · 1⤊ 0⤋
The mass refers to amount of substance that is present. Assuming your heating does not drive off any copper, it's mass will be the same at -30 degrees and at 150 degrees. All you are doing when heating it is adding energy to the system, which will allow the atoms to move faster. This is why metal will start to melt and flow at high enough temperature. If you've ever used solder for electronics, you will see this very easily.
2006-10-22 08:10:34 · answer #5 · answered by Gecko 3 · 1⤊ 0⤋
electrons in copper moves up and down. when copper is heated energy rises and electrons start to move in all direction. so the force of electrons increases due to increase in energy. so weight als increases.
2006-10-26 03:38:48 · answer #6 · answered by mehtab_47 1 · 0⤊ 0⤋
The mass of copper should stay the same.
However, i'm not sure if the formation of copper oxide counts, is that what the question was asking? *shurugs*
2006-10-22 08:14:23 · answer #7 · answered by Asif 1 · 0⤊ 0⤋
The mass of copper remains the same.
2006-10-22 08:01:34 · answer #8 · answered by devoutguardian 1 · 0⤊ 1⤋
mass the same
only volume increase
2006-10-22 08:06:50 · answer #9 · answered by Anonymous · 0⤊ 0⤋
Mass stays the same.
2006-10-22 08:03:59 · answer #10 · answered by hog b 6 · 0⤊ 1⤋