the formation of the following.
1. N2 2. HCl 3. CaO
Answers
Answer:
1.Electron configuration of N:2,5
Each N atom contributes 3 electrons for sharing.
A triple bond is formed between the two nitrogen atoms.
It required high enthalpy of formation.
2.Hydrogen chloride may be formed by the direct combination of chlorine (Cl2) gas and hydrogen (H2) gas; the reaction is rapid at temperatures above 250 °C (482 °F). The reaction, represented by the equation H2 + Cl2 → 2HCl, is accompanied by evolution of heat and appears to be accelerated by moisture.
3.Calcium reacts with oxygen to form an ionic compound calcium oxide (CaO). The atomic number of calcium is 20 and that of oxygen is 8 . By losing two electrons ,the calcium atom forms a calcium ion( Ca2+ ) ,and by gaining two electrons ,the oxygen atom forms an oxide ion (O2-).