Which is the next logical step in balancing the given equation?
3co(g) + fe2o3(s) fe(s) + 3co2(g)
a. place the coefficient 2 in front of iron(iii) oxide.
b. place the coefficient 2 in front of iron(iii) oxide.
c. place the coefficient 2 in front of elemental iron.
d. replace the coefficient 3 in carbon monoxide with 6.

We are given the equation 3CO(g) + Fe2O3(s)= Fe(s) + 3CO2(g) and determine the next step in balancing the equation. In this case,C is already balanced. The next step is to balance Fe so we put 2 before Fe (s) to balance the 2 atoms in the left of the equation. 

We are given with the equation 3CO(g) + Fe2O3(s) to form Fe(s) + 3CO2(g). To balance the given equation, we do elemental balance and verify each. for C we have 3 moles in each side. For O, we have 6 moles in each side. However for Fe, we have 2 moles in the left and only one mole in the right. Hence, there should be 2 moles of Fe(s) in the balance

There is one s orbital, and there are three p orbitals, five d orbitals, and seven f orbitals. thus, the answer is b. do not confuse the number of orbitals in a subshell with the number of electrons the subshell can hold. each orbital can hold two electrons, so the capacity of an nf subshell is 14 electrons.

Firstly, the water in the dams hold gravitational potential energy as they are above ground level. the gravitational potential energy is then transferred to kinetic energy as it falls, spinning the turbinethe turbine then spins the generator, which is a large magnet surrounded by metal coils. by doing this, the generator generates electricity. in this action, the energy transfer taken place is kinetic to electric energy