Construct an Explanation Sapphires and rubies are forms of the mineral corundum, Al, O3. Corundum is one of the hardest known natural materials.
The hardness of ionic compounds depends on the structure of the crystal
and the strength of the ionic bonds. The distance between the aluminum
ions (A13+) and oxide ions (O2-) is 191 pm. Use Coulomb's law to explain how
the bonding in Al2O3 influences its properties.

answer: the value of enthalpy change will be -152.80 kj.

solution:

pressure = 1atm , temperature = = 298 k

given that pressure and temperature are same in both gases , the number of moles of both gases can be determined by the ideal gas equation.

according to reaction 3 moles no are reacting with 1 mol of ,then 0.49 mol of no will react with moles of ozone that is 0.16 moles of ozone. since, no is limiting reagent and is an excessive reagent.

enthalpy change for the reaction between the given volumes of the gases is :

i have no clue hope you find the answer

the answer is 1260

you spend 7 hours in school for 1 school day with 5 school days in 1 school week with 36 school weeks in a school year.

7*5*36= 1260 it's all about multiplying