How many carbon atoms are present in 3.900 x 10-4 mol of carbon? give your answer in scientific notation. x 10 (select) a

The number of atoms of carbon present in given number of moles are

Explanation:

We are given:

Number of moles of carbon =

According to mole concept:

1 mole of an element contains number of atoms.

So, of carbon will contain = number of atoms.

Hence, the number of atoms of carbon present in given number of moles are

the potential energy of the reactants is 200j.

from the energy diagram, the energy of the product formed is 350j; this means that, this reaction is an endothermic reaction, because it absorbs energy from its environment.