What is the standard reduction potential of hg(aq) to e, v 2 hg(aq)2e -> hg2 (a) 0.90 +0.80 half reaction hg22+(aq) + 2e, 2 hg(1) (a) +1.70 v (c) +0.10 v (b) +0.85 v (d) -0.10 v 41. the lead-acid storage battery consists of the following two half-cells: pb02(s)+4 h(aq)+so4(aq) +2e - pbso4(s)+2 h o0) which of the following concentrations decrease as the pb(s) + so4 (aq) -» pbso4(s) +2 e battery is discharged? i. [h (a) i only (c) both i and ii ii. [pb2 (b) ii only (d) neither i nor ii

water   molecules stay close to each other through cohesion, the collective action of hydrogen bonds between water molecules. cohesion plants draw water upwards from the root through the stem's transport tubes (xylem) to the leaf. this transport occurs even in large trees and against gravity. transpiration, evaporation of water from plant leaves, creates a tension on water molecules being pulled up from the stem and roots.

water also has high (the attraction of one substance to another) properties because of its polar nature. adhesion of water molecules to plant cell walls counteract gravity while water is transported from roots to leaves.

water exhibits a very high surface tension when compared to other liquids. surface tension is a property of a liquid that holds the surface together and allows it to resist an external force. by capillary action, the water forms concave menisci inside the pores. the high surface tension of water pulls the concavity outwards, generating enough force to lift water from the roots to the leaves of plants.

thus, cohesion, along with adhesion and surface tension creates a capillary action that keeps water molecules interacting and moving through the plants out to the leaf cells.

therefore, option d) is the correct answer.

explanation:

its mg hope this

? you expect us to answer this? ? this is your schoolwork, i don't think we can with this, i think it would considering being

when [oh-] is 10-5  m, and [h3o+] is 10-9  m, the poh is 5 and ph is 9. again in both cases the sum of ph and poh is 14. however, the hydrogen ion concentration is not always going to be equal to exactly 1 x 10 raised to a negative number. for example, we skipped over the value of 2.0 x 10-7.