Reactivity of Nitrogen Nitrogen is a?diatomic?molecule and the main?unreactive gas?in air 78% of air is nitrogen gas The lack of reactivity of nitrogen gas can be explained by looking at its?intram...
Reaction of Chlorine A?disproportionation?reaction?is a reaction in which the same species is both oxidised and reduced The reaction of?chlorine?with?dilute alkali?is an example of a disproportiona...
Halide Ions: Reducing Agents Halide ions can also act as?reducing agents?and donate electrons to another atom The halide ions themselves get?oxidised?and lose electrons The?reducing power?of the ha...
Group 17: Oxidising Agents Halogens react with metals by accepting an electron from the metal atom to become an ion with 1- charge Eg.? ?Ca(s) + Cl2(g) → Ca2+(Cl-)2(s) Halogens are therefore?oxidis...
Group 17: Physical Trends The group 17 elements are called?halogens The halogens have uses in water purification and as bleaches agents (chlorine), as flame-retardants and fire extinguishers (bromi...
Trends in Solubility in Group 2 Hydroxides & Sulfates Group 2 hydroxides Going down the group, the solutions formed from the reaction of Group 2 oxides with water become more?alkaline When the ...
Group 2: Physical & Chemical Trends Chemical trends All elements in Group 2 (also called?alkali earth metals)?have the two electrons in their?outermost principal quantum shell All Group 2 metal...
Group 2: Thermal Decomposition of Nitrates & Carbonates Thermal decomposition?is the breakdown of a compound into two or more different substances using?heat Thermal decomposition of carbonates...
Reactions of Group 2 Oxides, Hydroxides & Carbonates Reactions of Group 2 oxides with water All Group 2 oxides are?basic, except for BeO which is?amphoteric?(it can act both as an acid and base...
