Old copper bottomed cooking utensils are safe to use as long as the insides are clean. Nothing new there. Copper is a superb conductor of heat, and these older pieces are fine items. Even better if they have been cared for. There are tips for care and maintenance in a number of places on the web. Bon appétit!
As of current estimates, there are approximately 55 years of copper ore reserves left at current consumption rates. Continuous exploration and advances in mining technology may potentially uncover more reserves in the future.
The element, 'Copper' has been known to man for so many thousands of years, that we simply do not know who named it. 'Copper' is not the original name, though. The original accepted name was 'Kupros' in Greek, and 'Cuprum' in Latin. This is why the abbreviation for copper is "Cu".
1 gram of copper is in 1 gram of copper.
Two: copper and oxygen.
There are two reactants in copper oxygen - copper (Cu) and oxygen (O2). When combined in a chemical reaction, they can form copper oxide (CuO).
Copper is an element. You can have a single atom or many atoms and it's still copper.
The value of your pan is not very much. The type of pan you ask about is very common and has been made by the Revere Ware company for the past 50 or 60 years. There are many many of these pans still made and used ones can be found in second hand stores.
Copper pennies only have an external copper gilding. The US mint went to a copper coated zinc alloy many years ago.
3 years.
6 teeth on bottom
The one at the bottom because over many years it has slowly been moved by its surroundings to the bottom
Montana has a long history of copper mining. The mines around Butte were world famous, and the enormous open pit is still a tourist attraction. Many books have been written on Montana's copper mines.
how is the symbol for copper different from that of oxygen? explain why
Copper IUDs cannot rust because they are made of copper, which does not rust. However, they may develop a greenish patina over time due to oxidation, which is normal and does not affect the effectiveness of the IUD.
Because it is a great conductor. Gold and platinum are better but would make the pot too expensive. The bottom surface conducts the heat to evenly warm up the contents. The next best pot or pan for this is cast iron. Copper is a good conductor so the saucepan heats up better if it has a copper bottom.
First of all, why did you write: ...Many years 'was' active. They are still active. They have been active from 1998 - 2010 (but are still going)
Copper sheeting has served many purposes over the years. Romans used it to line their ships and shields. Today, it is primarily used for weatherproof flashing.