Chemistry Lecture Notes: Oxidation and Chemical Reactions

Flashcards covering the calculation of oxidation states and various chemical reaction equations, including the formation of Phosphine and Silver phosphide.

Oxidation number of Oxygen in $HOF$

The oxidation state of oxygen in hypofluorous acid ($HOF$) is $0$, calculated as $1 + x - 1 = 0$.

Reaction: $4NaCl + MnO_2 + 4H_2SO_4 \rightarrow$

$$Cl_2 + MnCl_2 + 4NaHSO_4 + 2H_2O$$

Reaction: $NaNO_2 + HCl \rightarrow$

$$HNO_2 + NaCl$$

Balanced reaction of $IO_3^- + 5I^- + 6H^+$

$$3I_2 + 3H_2O$$

Phosphine

The gaseous product $PH_3$ formed by the reaction of phosphorus ($P_4$) with sodium hydroxide and water.

Sodium hypophosphite

The chemical compound $NaH_2PO_2$ produced in the reaction: $P_4 + 3NaOH + 3H_2O \rightarrow 3NaH_2PO_2 + PH_3$.

Reaction: $3AgNO_3 + PH_3 \rightarrow$

$$Ag_3P + 3HNO_3$$

Silver phosphide

The solid compound $Ag_3P$ formed during the reaction between silver nitrate and phosphine.

Reaction: $4Mg + 10HNO_3 \text{ (dilute)} \rightarrow$

$$4Mg(NO_3)_2 + NH_4NO_3 + 3H_2O$$