A sample containing 0.75 moles of CO2 would contain how many atoms?

4.5 ×10^22)

Explanation:

no. of particles =no. of mole×avogadro's number of particles no. of particles =0.75×6.02×10^23 no. of particles =4.5 ×10^22

a:

by the combination of an unlimited number of elements

what is the question here. i think you messed up.