The rows of a periodic table are called and the columns are called ) periods, (2) points (1) periods, (2) groups (1) families, (2) periods (1) groups, (2) periods

1) periods (which go across the Periodic Table) and 2) groups (which go down the Periodic Table)

I believe the answers A.(1)Periods,(2)Groups hope this helps tell me if I'm wrong :)

the electrical  conductivity  of asolution  of an electrolyte is measured by determining the resistance of thesolution  between two flat or cylindrical electrodes separated by a fixed distance.

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 :