Question

K-K2O-KOH-K2CO3-K3PO4

Answer 1

1. 4K+O2=2K2O
2. K2O+H2O=2KOH
3. 2KOH+H2CO3=2H2O+K2CO3
4. 3K2CO3+2H3PO4=2K3PO4+3CO2+3H2O

Answer 2

The sequence you provided appears to represent a set of chemical reactions involving potassium (K) and various oxygen-containing compounds. Let's break it down step by step:

1. K (Potassium): This is the chemical symbol for potassium, an alkali metal with atomic number 19. It is a highly reactive metal that readily forms ions with a +1 charge.

2. K2O (Potassium Oxide): When potassium (K) reacts with oxygen (O2), it forms potassium oxide (K2O). Potassium oxide is an ionic compound consisting of potassium cations (K+) and oxide anions (O2-).

3. KOH (Potassium Hydroxide): Potassium hydroxide is formed when potassium oxide (K2O) reacts with water (H2O). The chemical equation for this reaction is: K2O + H2O -> 2 KOH

4. K2CO3 (Potassium Carbonate): Potassium carbonate is formed when potassium hydroxide (KOH) reacts with carbon dioxide (CO2). The chemical equation for this reaction is: 2 KOH + CO2 -> K2CO3 + H2O

5. K3PO4 (Potassium Phosphate): Potassium phosphate is formed when potassium hydroxide (KOH) reacts with phosphoric acid (H3PO4). The chemical equation for this reaction is: 3 KOH + H3PO4 -> K3PO4 + 3 H2O

In summary, the reactions in the sequence are as follows:

K (Potassium) reacts with O2 (Oxygen) to form K2O (Potassium Oxide). K2O reacts with H2O (Water) to form KOH (Potassium Hydroxide). KOH reacts with CO2 (Carbon Dioxide) to form K2CO3 (Potassium Carbonate). KOH reacts with H3PO4 (Phosphoric Acid) to form K3PO4 (Potassium Phosphate).

These are all important reactions involving potassium and oxygen-containing compounds, and they play essential roles in various chemical and industrial processes.