Question

Mind map of combination reaction. element+element_compound

Answer 1

Answer :

Combination reaction is a type of chemical reaction in which two or more substances combined to form a single substance.

There are some combination reactions which may take place between two or more elements :

2Al(s) + 3Cl2(g) ------> 2AlCl3(s)

In this chemical reaction aluminium metal reacts with chlorine gas to form and aluminium chloride as a salt.

4Na(s) + O2(g) --------> 2Na2O(s)

In this chemical reaction, sodium metal reacts with oxygen gas to form sodium oxide as a base.

2Ca(s) + O2(g) ---------> 2CaO(s)

In this chemical reaction, calcium metal reacts with oxygen gas to form calcium oxide as a base.

2Ag(s) + Br2(g) ---------> 2AgBr(s)

In this chemical reaction silver reacts with bromine gas to form silver bromide as a salt.