Which has the greatest number of hydrogen atoms?
1. 20 g of hydrogen gas
2. 100 g of water
3. 100g of a substance that is 2% H by mass
4. 5 g of an unknown compound
5. 1020 hydrogen atoms

atomic number of carbon is 6

electronic configuration of carbon is 1s²2s²2p²

orbital diagram of c is as shown here in the image.

false

because it does not have the potential to be entirely used up

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 :