The oxidation number of phosphorus in H 2 P 2 O 7 2 − is to be determined. Concept introduction: Oxidation of a species involves the loss of electrons by that species and reduction of a species involves the gain of electrons by that species. Oxidation number is defined as the formal charge an atom would gain if all the bonds attached to it in a compound are heterolytically cleaved. Oxidation number can be a positive or negative number but cannot be fractional.
The oxidation number of phosphorus in H 2 P 2 O 7 2 − is to be determined. Concept introduction: Oxidation of a species involves the loss of electrons by that species and reduction of a species involves the gain of electrons by that species. Oxidation number is defined as the formal charge an atom would gain if all the bonds attached to it in a compound are heterolytically cleaved. Oxidation number can be a positive or negative number but cannot be fractional.
The oxidation number of phosphorus in H2P2O72− is to be determined.
Concept introduction:
Oxidation of a species involves the loss of electrons by that species and reduction of a species involves the gain of electrons by that species.
Oxidation number is defined as the formal charge an atom would gain if all the bonds attached to it in a compound are heterolytically cleaved. Oxidation number can be a positive or negative number but cannot be fractional.
(b)
Interpretation Introduction
Interpretation:
The oxidation number of phosphorus in PH4+ is to be determined.
Concept introduction:
Oxidation of a species involves the loss of electrons by that species and reduction of a species involves the gain of electrons by that species.
Oxidation number is defined as the formal charge an atom would gain if all the bonds attached to it in a compound are heterolytically cleaved. Oxidation number can be a positive or negative number but cannot be fractional.
(c)
Interpretation Introduction
Interpretation:
The oxidation number of phosphorus in PCl5 is to be determined.
Concept introduction:
Oxidation of a species involves the loss of electrons by that species and reduction of a species involves the gain of electrons by that species.
Oxidation number is defined as the formal charge an atom would gain if all the bonds attached to it in a compound are heterolytically cleaved. Oxidation number can be a positive or negative number but cannot be fractional.
For the condensation reaction between Alamine and histamine, please help me write the amididation reaction mechanism. Then write the three letter code for the product of the reaction, then write the one letter code for the product of the reaction. 
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