I. Answer the following questions:
1. Explain the reaction of metal with oxygen with an example.
2. Write the differences between metals and non Metals.
3. List out the chemical properties of metals .
4. Sodium should be kept under kerosene. Give reason .
Answers
Answer:
1When a metal reacts with oxygen, a metal oxide forms. The general equation for this reaction is: metal + oxygen → metal oxide. Rust is a form of iron oxide and it forms slowly when iron is exposed to air. Iron can be transformed to steel (an alloy), which is more resistant to rust.
2The difference is that metals react with oxygen to create alkaline, or basic, oxides while non-metals react with oxygen to create acidic oxides. ... Nonmetals react with oxygen to form acidic oxides which will react with bases such as sodium hydroxide and also provide a pH response of less than 7.
3Chemical Properties of Metals
The density of metals is usually high.
Metals are malleable and ductile.
Metals form an alloy with other metals or non – metals.
Some metals react with air and corrode. ...
Metals are good conductors of heat and electricity. ...
Generally, metals are in a solid state at room temperature.
4Sodium is a highly reactive metal and reacts vigorously with the oxygen, carbon dioxide and moisture present in the air such that it may even cause a fire. To prevent this explosive reaction, Sodium is kept immersed in kerosene because Sodium doesn't react with kerosene.
sare answers h
Explanation:
I hope it is helpful for you
pls pls pls mark my answer as a brainilst
