Why does air diffuse more slowly through aluminum than rubber?
Why does a rubber balloon filled with air remain inflated for a longer period than one filled with helium?
No, it does not. The reasons Alzheimer's patients have higher levels of aluminum is because the cells affected are less able to rid themselves of toxins (like aluminum) that build up. It is not because aluminum compounds, slowly accumulating over time, damage the cells. If the aluminum compounds somehow soaked in through the skin and damaged the brain, you would see an abnormally high amount of Alzheimer's disease affecting populations of people who worked with…
The price of rubber began to fall as more was being sold. The Amazon merchants could not afford to sell their rubber as cheaply as the Asian merchants did. Amazon rubber was much harder to find and collect since it was spread out through the forest. The wealthy merchants lost their money and left. Manaus became a small trading town with many beautiful buildings that were slowly overrun by the jungle.
Aluminum is non-magnetic, but does interact with magnetic fields. Aluminum isn't normally magnetic, but as you carry a large aluminum tray towards the magnet, you find that the magnet repels the aluminum, why? Lenz's law. The magnet induces a magnetic field in the moving aluminum tray to oppose it's own, effectively pushing it away. As long as the tray doesn't move, it experiences no magnetic forces. But when you drop it, it falls past the…
Unlike some other metals, such as iron, aluminum has a resistance to oxidation. However, purified aluminum (cans, foil) will slowly and eventually be dissolved by the actions of other chemicals. It is preferable that it be recycled, however, because it is easier and cheaper to reuse elemental aluminum than to separate it from bauxite ore. When tossed out of a car, it will not decompose within your lifetime naturally, so don't do that!
Not very much unless it is also mixed with water and subjected to high temperature and pressure to prevent the water boiling. This reaction is used as part of a method for extracting aluminum from bauxite ore. At normal temperatures and pressures, aluminum oxide will dissolve slowly in sodium hydroxide solution to form various complex sodium aluminum hydroxides.
Yes in two ways - 1) heat causes atoms and molecules to vibrate, 2) atoms can slowly diffuse through solids and the rate of diffusion increases with temperature. Also, over geologic time, tectonic forces move the continents and deform the rocks comprising them. Obviously the atoms making the rocks will move with the rocks as this happens.