It will be Solvent the term that would describe the alcohol will be solvent.
1.27moles of K3PO4 can be formed.
Because the moon gets between the Sun and the Earth so you can't see the moon
If you’re referring to he red stuff- the liquids can be ethanol, toluene, kerosene, or isoamyl acetate. They’re transparent so they’re made more visible with red dye. (So I’d guess the answer is ethanol)
I found this in the Wikipedia article ‘Alcohol thermometer’