Coffee is acidic so the first one would be correct
        
             
        
        
        
NaPO4 + KOH -> KPO4 + NaOH
already balance
        
             
        
        
        
<span>any electrolyte that is not easily reduced or oxidized</span>
        
             
        
        
        
Answer:
the third option
Explanation:
The circuit is incomplete and broken, and the lights in the circuit do not shine.
An open circuit means an incomplete circuit.
The first option is wrong since the lights do not shine in an open circuit.
The second option is wrong since an open circuit is incomplete.
The fourth option is also wrong since an open circuit is broken or incomplete.
∴ The third option is correct.