A 2.5 L gas in a cylinder fitted with a movable piston is originally at 25 °C and 1.00 atm pressure. The gas is then subjected to a pressure of 0.85 atm at the same temperature. The final volume of the gas is L.

b. acid is the correct answer @jayxboof all social media

acid : acids are those which accepts an electron-pairs.

base : bases are those which donates ab electron-pairs.

alkali : it is a base that dissolves in water. it is basically a base and the ph greater than 7.

hydroxide ion : it is a poly-atomic ion which is negatively charged.

the positions which points up in upward carbon and down in downward carbon are axial

and vice versa holds true for equatorial positions

so the correct answer with labelled diagram will be

there are two significant figures.