Question

In: Chemistry

Continue and balance the following reactions. Provide half-reactions for balancing of redox processes P4 + KOH...

Continue and balance the following reactions. Provide half-reactions for balancing of redox processes

P4 + KOH —> (at reflux, in solution)

NO2 + Ca(OH)2 —>

Ba(OH)2 + H3PO2 —>

Al2O3 + SeO3 —>

AsF5 + KOH —>

CS2 + NaOH —>

Al(NO3)3 —>

MgO + H3PO3 —>

Expert Solution

(a): P₄ reacts with KOH at reflux in solution to form phosphine(PH₃) and KH₂PO₂. The balanced equation is given below:

P₄ + 3KOH + 3H2O ------> PH₃ + 3KH₂PO₂

(b): Ca(OH)₂ is a base where as NO₂ is an acid. Hence their reaction is an acid-base reaction to produce nitrate and nitrite salt of calcium and water.

2Ca(OH)₂ + 4NO₂ ------> Ca(NO₃)₂ + Ca(NO₂)₂ + 2H₂O

(c): Ba(OH)₂ is a diacidic base where as H₃PO₂ is a monobasic acid. Hence their reaction is an acid-base reaction to produce barium salt and water.

Ba(OH)₂ + 2H₃PO₂ --------> Ba(H₂PO₂)₂ + 2H₂O

(d): Al₂O₃ + 2SeO₃ = Al₂(SeO₄)₃

(e): AsF₅ is an acid where as KOH is a base. Hence their reaction is an acid-base reaction to form salt and water.

2AsF₅ + 10KOH ------> As₂O₅ + 10KF + 5H2O

queen_honey_blossom answered 2 years ago

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