Question

K→KOH→Mg(OH)2→MgO→Mg(Na3)2

Answer 1

2K + 2H2O — 2KOH + H2
2KOH + MgCl2 — Mg(OH)2 + 2KCl
Mg(OH)2 –t°– MgO + H2O
MgO + 2HNO3 — Mg(NO3)2 + H2O

Answer 2

The chemical reactions you listed involve the transformation of potassium (K) into various compounds. Here's a breakdown of each reaction:

1. K (potassium) → KOH (potassium hydroxide): In this reaction, potassium reacts with water (H₂O) to form potassium hydroxide (KOH), a strong base. The balanced chemical equation for this reaction is: 2 K + 2 H₂O → 2 KOH + H₂↑

2. KOH (potassium hydroxide) → Mg(OH)₂ (magnesium hydroxide): In this reaction, potassium hydroxide (KOH) reacts with magnesium chloride (MgCl₂) to produce magnesium hydroxide (Mg(OH)₂) and potassium chloride (KCl). The balanced chemical equation for this reaction is: MgCl₂ + 2 KOH → Mg(OH)₂ + 2 KCl

3. Mg(OH)₂ (magnesium hydroxide) → MgO (magnesium oxide): Magnesium hydroxide (Mg(OH)₂) can be thermally decomposed, or heated, to yield magnesium oxide (MgO) and water (H₂O). The balanced chemical equation for this reaction is: Mg(OH)₂ → MgO + H₂O

4. MgO (magnesium oxide) → Mg(Na₃)₂ (magnesium sodium oxide): I'm not aware of a direct reaction between magnesium oxide (MgO) and sodium (Na) to form magnesium sodium oxide (Mg(Na₃)₂). It's possible that you made an error or there might be some additional steps or reactions involved.

Please note that chemical reactions can be influenced by various factors, such as temperature, pressure, and the presence of catalysts. The reactions you listed represent simplified equations and may not reflect the complete details of the reactions under specific conditions.