Question

1.what what happen when I reason reacts with oxygen
2.what what do you mean by reactivity series
3.what what happens when aluminium reacts with copper sulphate solution
4.what are the physical property of metal and nonmetal​

Answer 1

Answer:

1. When 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.

2. a reactivity series (or activity series) is an empirical, calculated, and structurally analytical progression of a series of metals, arranged by their "reactivity" from highest to lowest.

3. Aluminium displaces the copper from its salt solution to form Aluminium Sulphate. The colour of the solution will change from blue to transparent and copper will be observed as a layer on the Aluminium piece.

4. The following are the physical properties of metal :

The physical properties make them useful for many purposes. For e.g. Copper is used in making electric wires, gold is used to make jewellery, stainless steel is used to make pots, pans, etc

Metals react with nonmetals to form ionic bonds. For e.g. Sodium Chloride (NaCl).

Nonmetals

Physical State: Most of the non-metals exist in two of the three states of matter at room temperature: gases (oxygen) and solids (carbon). ...

Non-Malleable and Ductile: Non-metals are very brittle, and cannot be rolled into wires or pounded into sheets.

Conduction: They are poor conductors of heat and electricity.

Explanation:

Hope it is helpful..........................