How many atoms of zinc are in 0.60 mol of zinc? 2. how many moles is 3.52 × 1024 molecules of water? 3. how many atoms are in 2.00 moles of li? 4. how many moles are in 6.02 x 1023 atoms of carbon? 5. how many moles are in 4.9 x 1023 molecules of zncl2?

  question 1
 by use  of Avogadro  law
that is,1 mole = 6.02  x10^23 atoms
  what  about  0.60  moles  
by use of cross multipication

=(0.60 mole/ x 6.02 x10^23)/ 1mole = 3.612 x10^23 atoms of Zn

question  2
by  use  of Avogadro  law  constant
that  is 1 mole  =6.02  x10^23  molecules
what  about 3.52 x10^24  molecules
by cross  multiplication
=( 1 mole x3.52 x10^24 molecules/6.02 x10^23  molecules)  = 5.847  moles of water

question 3

by  use  of Avogadro  law  constant
1 mole = 6.02 x10^23 atoms
what about  2 moles =? atoms
by use of cross  multiplication
=( 2moles  x 6.02 x10^23 )/1mole= 1.204 x10^24  atoms  of Li

question 4

by  use  of Avogadro  law  constant
1 mole = 6.02 x10^23  atoms
what about 6.02  x10^23 atoms =? moles
cross  multiplication
(1 mole x6.02 x10^23 atoms)/(6.02 x10^23 atoms)=  1 mole  of carbon

question  5
by  use Avogadro law  constant
1 mole =6.02 x10^23 molecules
what  about 4.9 x10^23  moles =?  moles
by   cross  multipication
=( 1mole x 4.9  x10^23 molecules) /6.02 x10^23  molecules = 0.81  moles  ZNCl2

Idon't know hope someone you

Answer : option a) 84explanation :

considering the question as per the attachment

here we can see that the radon nuclide has 222 as the atomic mass number and 86 as the atomic number.

when it undergoes nuclear fission it gives polonium which has atomic mass number as 218 and atomic number will be 84 along with a helium nucleus which has 4 atomic mass number and 2 as its atomic number.

222 = 218 + 4 (atomic mass number)

86 = ? + 2; therefore ? = 86-2 = 84.

the atomic mass number of polonium will be 84.