Some plants grow in soils as high as 20% iron. If the iron is present in the form of Fe(OH)3, the plants can still be iron deficient. Explain how this can be true.

Explanation:

It is known that is insoluble in water. As a result, plants are not able to absorb readily through osmosis.

Therefore, the in would be released in acidic environments, using neutralization, Iron(III) ions can be released.

Hence, the easiest way is to add low concentrations of to the soil is as follows.

Thus, we can conclude that is soluble and is good for plants too.

  the   balanced   equation   for   reaction of   ca metal   with   o2 to   produce   cao   is as below

2 ca+ o2→ 2 cao2

  explanation

the reaction is   balanced     since the   number of atoms   in reactant side is   equal to   number of atoms   in   product side.   for   example   they   are 2   atom of   ca in   reactant   side   and   2   atoms of ca   in   the product side.

  the   process   is a   meet the   requirement   of   redox   reaction because :     calcium   is   oxidized   from   oxidation state 0   to 2+   while   oxygen   is reduced from   oxidation   state   0   to 2-