Question

Помогите пожалуйста, какая валентность у CrO3 CiCl4 Fe2O3 HCl SO3 Cu2O MgO Al2O3 B2O3 SiO2 и пожалуйста как можно скорее!!!​

Answer 1

Ответ: Cr(2),Ci(4),FE(3),H(1),S(6),Cu(2),Al(3),B(3),Si(4)

Объяснение:

Answer 2

Ответ:Cr-6, Ci-4, Fe-3, Cl-1, S-6, Cu-1, Mg-2, Al-3, B-3, Si-4

Объяснение:CL в этих соеденениях кислотные остатки, поэтому оно имеет валент 1, во всех соеденениях O-2 и H-1.

Answer 3

Valence of Compounds

The valence of a compound refers to the combining capacity of an element, or the number of electrons an atom of that element can gain, lose, or share when it reacts with other atoms. Here are the valences of the compounds you mentioned:

- CrO3: The valence of chromium (Cr) in CrO3 is +6 [[1]]. - CiCl4: I couldn't find any information on a compound called CiCl4. It's possible that you may have misspelled the compound name. If you meant CCl4, the valence of carbon (C) in CCl4 is -4 [[2]]. - Fe2O3: The valence of iron (Fe) in Fe2O3 is +3 [[3]]. - HCl: The valence of hydrogen (H) in HCl is +1 [[4]]. The valence of chlorine (Cl) in HCl is -1 [[5]]. - SO3: The valence of sulfur (S) in SO3 is +