C + H2 =
C + Cl2 =
C + N2 =
C + S =
N + H2 =
N + Cl2 =
N + N2 =
N + S =
S + H2 =
S + Cl2 =
S + N2 =
S + S =
P + H2 =
P + Cl2 =
P + N2 =
P + S =