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A2. The prehistory of metalworking is lost in time, but the Egyptians may have been the first to work metals. Gold was easy to work, for it is found as the native metal and is easily worked. But these folk also knew of bronze tools for working rock.
Metal working is prehistory.
What else can I help you with?
What was the first screened photosensitive metal plate?
The first screened photosensitive metal plate was the heliograph, invented by Joseph Nicéphore Niépce in 1826. This process used bitumen of Judea on a metal plate that hardened when exposed to light, creating the first permanent photograph.
Is bakelite a metal?
No, bakelite is not a metal. Bakelite is a type of plastic known as a phenolic resin. It was one of the first synthetic plastics to be created and was commonly used for making various products in the early to mid-20th century.
What are metal stamps used for?
Metal stamps are used to imprint designs, letters, or numbers onto metal surfaces by striking the stamp with a hammer. This process allows for customization and personalization of metal objects such as jewelry, keychains, and metal tags. Metal stamps are commonly used by artisans, jewelry makers, and hobbyists to create unique and personalized pieces.
How may the reaction with oxygen be used to distinguish a metal from a non metal?
When a metal reacts with oxygen, it forms a metal oxide which is basic in nature. This can be distinguished from a non-metal oxide, which is acidic in nature. This difference in the nature of oxides can be used to identify whether a substance is a metal or non-metal.
What is the use of acids and bases in metal industry?
Acids are used in the metal industry for processes such as pickling, cleaning, and etching to remove impurities or scale from metal surfaces. Bases are used to neutralize acids after these processes to prevent corrosion and to adjust the pH of solutions used in metal treatment. Together, acids and bases play a crucial role in metal processing and finishing to improve the quality and properties of metal products.
What was the first commonly used metal?
the first commonly metal used was wood
What was the first metal to be used by men?
the first metal used by men was copper
Which metal was first used by human being?
At first which metal had been used by human ?
What metal was used first?
the first metal that was made was iron
Who first invented printing that used separate metal letters?
Gutenburg first invented printing that used separate metal letters.
First metal used by Europeans?
copper
The first metal used by man?
Iron
What is the first metal used by man?
copper
What was used to make the first typewriter?
metal
The first metal to be used by man was?
Gold.
Which was the first metal discovered by man?
The first metal discovered by man was gold and it was mainly used for decoration purpose.
The first alkali metal?
The first alkali metal is lithium, which is in the first group of the periodic table. It is a soft, silvery-white metal that is highly reactive and commonly used in rechargeable batteries.
