Gold(Au) cannot react in rooom temperature.
Oxidation is the usual cause of discoloration when an iron is exposed to air. The atoms on the surface of the metal react with Oxygen in air to produce a metal oxide.
All of them except Gold.many form a metal oxide layer that protects them from further oxidization.
Gold is a very inert metal. It does not readily react with water or the air(oxygen). Calcium on the other hand is a very reactive metal . If jewellery was made from it , it would react with the skin, air, and water.
they react in air by oxidising.
metal react to the molecules in the air and they break down the outer layers of the metals into other compounds. polishing the outer layer breaks up those compounds.
group one and two metals react with oxygen in the air as well as moisture to from metal oxides
Oxidation is the usual cause of discoloration when an iron is exposed to air. The atoms on the surface of the metal react with Oxygen in air to produce a metal oxide.
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Metals react with air in a form called oxidizing. This is caused because the oxygen molecules are reacting with the surface of the metal.
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Metals in the reactivity series from aluminium to copper react with oxygen in the air to form the metal oxide. Aluminium and Zinc reacts very quickly, Iron reacts slowly at room temperature. Tin, Lead and Copper reacts with Oxygen in air when heated. Silver, Gold and Platinum do not react with Oxygen in air
All of them except Gold.many form a metal oxide layer that protects them from further oxidization.
Sulfur doesn't react with water.
that all are hardthat all are solid at room temperaturethat all react slowly with air
No change.
The reason why metal have to be clean with sandpaper is to remove the oxide layer on the surface of the metal. This is because most metal have a high tendency toward oxygen. The metal will react with oxygen in the air and form an oxide layer on the surface of the metal.
they react in air by oxidising.