What is the average atomic mass of a sample containing three Lithium-6 atoms and two Lithium-7 atoms?

c is the answer because when something is left after something evaporates that shows the chemical change.

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 :

it forms an anion that has a larger radius. anions have a negative charge and are larger than the original atom.

explanation:

a