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Density
Mercury was regularly used in thermometers in the past, but it is poisonous and is not used so often nowadays, as different types of thermometer are produced.
The word carat is used to denote the purity of the metal it is used on. Therefore, 18 carat shows that the metal (i.e gold) is 75% pure, while 22 carat shows that it is nearly 92% pure metal, ( 91.67% to be precise).So the difference is 17% in the purity of the metal.
Gold is hallmarked depending on the purity of the metal used. Gold plate is not hallmarked and will, eventually, show signs of wear with the base metal showing through the plating.
the technique is the periodic table. you can search he element as well as check if it is a non metal or metal.
because gold or iron are metal if they are not a metal so they can not check the purity but they are metals..
because gold or iron are metal if they are not a metal so they can not check the purity but they are metals..
No, a thermometer measures temperature,
malleability
Density
A thermometer..
The metal that was used in thermometers was mercury, however now alcohol is usually used.
Mercury is used in clinical thermometers.
Meat thermometer.
A laboratory thermometer is used to check the temperature, or changes in temperature, of an object with precise accuracy.
We still use colored alcohol for our liquid in everyday thermometers.
Mercury was regularly used in thermometers in the past, but it is poisonous and is not used so often nowadays, as different types of thermometer are produced.