Question

1. Складіть формули бінарних сполук враховуючи валентність хімічних елементів: A) Ca=0; Сощо; Ag'll; NVo; FelCl; WVIO; As H.​

Answer 1

Объяснение:

СаО

AgI

N2O5

FeCl2 = Fe(II); FeCl3 = Fe(III);

WO3

AsH3

Answer 2

Binary Compounds and Valence of Chemical Elements

Binary compounds are compounds composed of two different elements. The valence of an element refers to its combining capacity or the number of electrons it can gain, lose, or share when forming chemical compounds.

Here are the formulas for the binary compounds you mentioned, taking into account the valence of the chemical elements:

1. CaO: Calcium oxide. Calcium (Ca) has a valence of +2, and oxygen (O) has a valence of -2. Therefore, the formula for calcium oxide is CaO [[1]].

2. SO3: Sulfur trioxide. Sulfur (S) has a valence of +6, and oxygen (O) has a valence of -2. Therefore, the formula for sulfur trioxide is SO3 [[2]].

3. AgCl: Silver chloride. Silver (Ag) has a valence of +1, and chlorine (Cl) has a valence of -1. Therefore, the formula for silver chloride is AgCl [[3]].

4. N2O: Dinitrogen monoxide. Nitrogen (N) has a valence of +2, and oxygen (O) has a valence of -2. Therefore, the formula for dinitrogen monoxide is N2O [[4]].

5. FeCl3: Iron(III) chloride. Iron (Fe) has a valence of +3, and chlorine (Cl) has a valence of -1. Therefore, the formula for iron(III) chloride is FeCl3 [[5]].

6. WO3: Tungsten trioxide. Tungsten (W) has a valence of +6, and oxygen (O) has a valence of -2. Therefore, the formula for tungsten trioxide is WO3 [[6]].

7. AsH3: Arsine. Arsenic (As) has a valence of +3, and hydrogen (H) has a valence of +1. Therefore, the formula for arsine is AsH3 [[7]].

I hope this helps! Let me know if you have any further questions.