Hurry, a high school chemistry problem! Two high school chemistry questions! Urgent!

SO2 and SO3 enter the water to produce H2SO3 and H2SO4, H2SO4 and BACL2 form insoluble substances BaSO4 and hydrochloric acid, BaSO4 is insoluble in hydrochloric acid, and the reaction is feasible. In fact, BaSO3 is dissolved in hydrochloric acid, that is, the reverse reaction between H2SO3 and BaCl2 can be carried out, but the positive reaction cannot be carried out.

I'm ashamed that I have returned all my chemistry knowledge to my teacher. I think the high temperature reaction given is 2FeSO4=Fe2O3+SO2 +SO3, and the 2 gases produced by this reaction are passed into BaCl2, which is equivalent to the reverse reaction of this reaction, but the cation is replaced by BA, and the anion is replaced by SO4 to Cl, so BASO4 is produced, and it should be in terms of ion equilibrium, and BASO3 cannot be produced.

so3+h2o=h2so4 ，h2so4+bacl2=2hcl+baso4

SO2+H2O=H2SO3 Sulfurous acid is unstable and easily reacts with oxygen in the air to form sulfuric acid H2SO4 back to it, or it still decomposes into SO2 and water...

This kind of competition question, who will answer it if you don't score it、、、lz?

First of all, there is never a V-shaped configuration of space... The spatial configuration generally has linear, planar triangle, tetrahedron, etc. The V-shape refers to the geometric configuration...

The formula you say is right ... But it's very abrupt to come to a 3+0, which makes a lot of people baffled, if you say 3+0*2, it is estimated that there will not be so many misunderstandings. . .

The O3 space configuration is a planar triangle, but since the presence of lone pairs occupies one of the vertices of the triangle (the geometric configuration is not shown but the spatial configuration considers the presence of lone pairs), the geometric configuration is V...

If you still don't understand, refer to NH3 and NH4+, which are (5+3) 2=4 and (5+4-1) 2=4 respectively, so the spatial configuration is tetrahedron, but since there is a lone pair of electrons in NH3, his geometric configuration is a trigonal pyramid...

To put it simply, because the O atom in the middle has two pairs of lone pairs of electrons, one of which participates in the conjugation, and the other pair is equivalent to a chemical bond, so when it forms a compound, it will be disassembled by the lone pairs of electrons when it forms a bond, and the bond angle is not 180 degrees, nor 120 degrees, but degrees. Just like the bond angle of the O-H bond in the water molecule is degrees.

The spatial configuration of O3 is not V-shaped, but planar triangle, and the geometric configuration is V-shaped.

Generally, a planar triangle refers to a planar regular triangle, and it is composed of 4 atoms, such as BF3 and SO3, and there are only 3 atoms in the ozone molecule. Moreover, the bond angle of the ozone molecule is not 60°.