What is the difference between H2BO3 and H3BO3? Which is the molecular formula of boronic acid?

H2BO3 is the simplest form of perdiboronic acid, and the molecular formula is H4B2O6 or H4B2O4(O2).There is also a similar diboronic acid.

B and B contain a peroxide bond, which is similar to persulfurous acid (H2S2O8, or H2S2O6 (O2)), and there is a similar perboronic acid, boric acid H2BO6 or H2B2O2(O2)2, its salt Na2B2O6 is a very widely used bleaching agent in the industry, as a strong oxidizing agent.

Acids containing peroxide bonds are strong oxidants, such as persulfuric acid will occur when it encounters organic matter**.

It is worth pointing out that the ionization of H3BO3 is not the ionization of H itself, but it is Lewis acid, which is combined with a H2O to form H[B(OH)4], so boric acid is a monobasic acid, which is similar to metaaluminic acid, metaaluminate, although it is written as (ALO2)-, but in aqueous solution it is actually [AL(OH)] - this is a complex, and it is written as (ALO2)-, ALO2) in high school in order to reduce the difficulty of learning, which is rapidly hydrated in water to form [Al(OH)4]-So what is written upstairs about boric acid ionization is wrong.

H2BO3 is the simplest formula of perdiboronic acid, the molecular formula is H4B2O6 or H4B2O4 (O2), the ionization of H3Bo3 is not the ionization of H itself, it is Lewis acid, combined with a H2O to form H[B(OH)4], so boric acid is a monobasic acid. I don't know, sorry!

H3BO3 can be written as B(OH)3

1.There are h atoms attached to the O atoms, so there are rotten hydrogen bonds.

2.It is impossible for each hydrogen atom to be hungry to be connected to another O atom in that molecule, and the position is not satisfied (it can only be reconstructed before forming a quaternary ring junction, and the tension is very high), and it can only be connected to an O atom in another molecule to form an intermolecular hydrogen bond.

Boric acid (H3BO3) is a weak acid of the bridge socks ruler, good spine, three sensitivities, high yuan, and weak acid. （）

a.That's right. b.Mistake.

Correct answer: B

The structure of B(OH)3 is a planar triangle (excluding H), and the chemical bonds formed can be rotated, so H can also enter the plane, and theoretically hydrogen bonds can also be formed inside the molecule, but the hydrogen bonds within the molecule are relatively weak;

This is because of two reasons, one is the action distance, because the OH of boric acid is limited by the chemical bond in different directions, it is far away and the arm is short (OH is only one bond, too short, if it is such as CH2-CH2-OH, it is long enough to stretch back to form a hydrogen bond) and cannot be extended back; The second is that hydrogen bonds are directional, that is, H has the highest stability along the direction of the lone electron pair of O, and it is difficult to form strong hydrogen bonds within the molecule, and it is often easier to satisfy the strongest hydrogen bonds between molecules.

So hydrogen bonds are formed between molecules, forming crystals with a planar layered structure.