Calculate the heat of reaction ΔH for the following reaction:
CCl4(g)+ H2(g)→CHCl3(g)+ HCl(g)

if two electrons have the same n, the same ℓ, and the same ml, then they are in the same orbital. the pauli exclusion principle states that no two identical fermions (a fancy word for electrons and other subatomic particles like electrons) may occupy the same quantum state in an atom simultaneously.

b. th3 n4zc4 pl4t3 15 c0nv3rg1ng w1th the s0uth 4m3ric4n pl4t3.

"the periodic table is arranged in order of atomic number."