Which one of the following reactions will occur spontaneously at standard-state conditions and 25°c? fe2+(aq) + ni(s) → fe(s) + ni2+(aq)mn2+(aq) + cd(s) → mn(s) + cd2+(aq)br2(l) + sn(s) → 2br-(aq) + sn2+(aq)cr3+(aq) + 3cu+(aq) → cr(s) + 3cu2+(aq)2ag+(aq) 2h2o(l) → 2ag(s) + 2h+(aq) + h2o2(aq)

h let me think

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 best answer is d because the strong cohesion is caused by the ability of water molecules to undergo hydrogen bonding.

a is incorrect because when water solidifies, it becomes   ice, which expands and occupies a bigger volume for the same mass of water in its liquid state.

b is incorrect because water has high surface tension. besides bonding to itself it hydrogen bonds to other molecules at the top decreasing possibility for breaking of attractive forces.

c is incorrect because the water molecule has oxygen which is highly electronegative and so pulls the electron pair towards itself creating a dipole moment, making the molecule polar.

e is incorrect because water has strong adhesion, ability to stick to other molecules such as glass because of this molecules having stronger hydrogen bonding than water.