Question

1. Which of the following metal has smooth and shiny surface?
a. Zinc
b. Sodium
c. Calcium
d. Iron​

Answer 1

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Zinc is a bluish-white metal with a shiny surface. It is neither ductile nor malleable at room temperature. Ductile means capable of being drawn into thin wires.

Under standard conditions calcium is a shiny, silvery metal. It is fairly soft and is the lightest of the alkaline earth metals due to its low density.

What is tin? Tin is a soft metal with a shiny surface.

Tin has two important properties: it melts at a low temperature and it doesn't change when in damp air. When tin is mixed with lead (which also melts easily) it makes solder. Solder is used to join components together in some electrical circuits.

Tin has two important properties: it melts at a low temperature and it doesn't change when in damp air. When tin is mixed with lead (which also melts easily) it makes solder. Solder is used to join components together in some electrical circuits. Because tin resists the weather, it means that it can be used to protect metals like steel that rust in damp air. Tin-coated steel is called tin plate. Tin plate is used to make food cans.

Tin has two important properties: it melts at a low temperature and it doesn't change when in damp air. When tin is mixed with lead (which also melts easily) it makes solder. Solder is used to join components together in some electrical circuits. Because tin resists the weather, it means that it can be used to protect metals like steel that rust in damp air. Tin-coated steel is called tin plate. Tin plate is used to make food cans. Tin is also used in the making of smooth sheets of glass. The tin is heated until it is molten then a sheet of molten glass is floated on top of it. The glass is allowed to cool on the liquid tin then it is cut up and used for making windows.

Tin has two important properties: it melts at a low temperature and it doesn't change when in damp air. When tin is mixed with lead (which also melts easily) it makes solder. Solder is used to join components together in some electrical circuits. Because tin resists the weather, it means that it can be used to protect metals like steel that rust in damp air. Tin-coated steel is called tin plate. Tin plate is used to make food cans. Tin is also used in the making of smooth sheets of glass. The tin is heated until it is molten then a sheet of molten glass is floated on top of it. The glass is allowed to cool on the liquid tin then it is cut up and used for making windows. Tin is mixed with copper to make bronze for coins and ornaments....

Answer 2

Answer:

calcium magnesium aluminium | protected by oxide layer zinc reacts with steam iron tin ... B Sodium. C Carbon. D Iron. E Magnesium. 3- Complete the word equation - ... oxygen when you slice it and open up a one of its shiny, silvery surfaces to the ... 5 Which of these is the correct symbol equation for the reaction of group 2 ...