How is counting a truckload of pennies like counting the atoms in 10.0 g of aluminum? How is it different?

Explanation:

A truckload of pennies is quite a very large amount of problem to solve. A truck can carry a lot of coins which can be up to several millions in number approximately.

This is similar to counting the number of atoms in 10.0g of aluminium.

 In a mole of any substance, there are 6.02 x 10²³ atoms.

            number of moles  =

                    molar mass of Al  = 27g/mole

           number of moles  =   = 0.37moles

  Number of atoms  = 0.37 x 6.02 x 10²³ = 2.23 x 10²³ atoms

In 10g of aluminium, there are 2.23 x 10²³ atoms. It is even much more tedious to count.

Difference;

We can see the pennies in the truckload. They are discrete. It is impossible to see atoms in a substance this way.

Also, the number of atoms in 10g of aluminium is more than that of pennies in a truckload.

conduction is the transfer of thermal energy (heat in transfer) due to collisions between the molecules in the object. collisions between adjacent atoms and molecules transfer kinetic energy from the warmer to the cooler object. the objects must be in physical contact.