Aluminium–air batteries are primary cells, i.e., non-rechargeable. Once the aluminium anode is consumed by its reaction with atmospheric oxygen at a cathode immersed in a water-based electrolyte to form hydrated aluminium oxide, the battery will no longer produce electricity. How … Continue reading →

Three physical properties of aluminum foil are that it is shiny (or reflective), it’s malleable, and it’s opaque. What are the 3 physical properties of aluminum? It has low density, is non-toxic, has a high thermal conductivity, has excellent corrosion … Continue reading →

The answer is no. As many people know, diamonds are composed of carbon. Since cremation furnaces must burn between 1600 and 1800 degrees Fahrenheit and carbon burns at 1400 degrees Fahrenheit, there is no carbon left after a body is … Continue reading →

Like 1.5 Lbs of force with a hard object. Diamonds are Incredibly brittle and weak. Hardness is their main property, which is a metallic property that dictates their resistance to scratching, likewise anything softer than a diamond will be scratched … Continue reading →

Originally Answered: Why does it take such a short time for a battery to charge to 80% but significantly longer to 100%? That is how chargers are designed because of the way that batteries absorb the current. If you continued … Continue reading →

And all of them form an anion with a single negative charge. The VIA elements gain two electrons to form anions with a 2- charge. The VA elements gain three electrons to form anions with a 3- charge.Positive and Negative … Continue reading →

Aluminum. What is the hardest metal to weld? Aluminum is the metal that is very hard to weld due to its melting point, the conductivity of heat, and ductility. What is the most difficult metal to weld? Originally Answered: What … Continue reading →

Does gold dissolve in vinegar? The mixture of vinegar (dilute acetic acid) and peroxide will leave gold untouched. The only chemical mixture that dissolves gold is aqua regia, a mixture of concentrated nitric and hydrochloric acids. How can you extract … Continue reading →

A typical iPhone is estimated to house around 0.034g of gold, 0.34g of silver, 0.015g of palladium and less than one-thousandth of a gram of platinum. It also contains the less valuable but still significant aluminium (25g) and copper (around … Continue reading →

White gold is made of a mixture of pure gold and white metals such as nickel, silver and palladium, usually with a rhodium coating. White gold is real but it’s not made entirely of gold. The other metals help to … Continue reading →

In 2020 the price of dysprosium oxide was 260 U.S. dollars per kilogram. There are 17 rare earth elements and although they are fairly abundant in the Earth’s crust, often they occur at sparse intervals are are less economically exploitable. … Continue reading →