Question

Перетворити схеми на рівняння і виправити помилки в формулах 1. Ag + S → AgS 2. K + Cl → KCl 3. Н2 + Cl → НCl 4. Mg + O → Mg2O3 5. BaO → BaO + O2 6. N2 + H2 → NH2 7. HS + SO2 → S + H2O 8. CaCl2 + H3PO4 → Ca(PO4)2 + HCl​

Answer 1

Ответ:

на фото ....................

Answer 2

Объяснение:

2Ag + S = Ag2S;

2K + Cl2 = 2KCl;

H2 + Cl2 = 2HCl;

2Mg +O2 = 2MgO;

2BaO = Ba + O2;

N2 + 3H2 = 2NH3;

2H2S + SO2 = 3S + 2H2O;

3CaCl2 + 2H3PO4 = Ca3(PO4)2 + 6HCl;

Answer 3

1. Ag + S → AgS (Correct)

2. K + Cl → KCl (Correct)

3. H2 + Cl → 2HCl (The equation is balanced, but the formula for hydrogen chloride is HCl, not НCl)

4. 2Mg + O2 → 2MgO (The equation is balanced, but the correct formula for magnesium oxide is MgO, not Mg2O3)

5. 2BaO → 2Ba + O2 (The equation is not balanced. It should be 2BaO → 2Ba + O2. The product should be separated into its elements.)

6. N2 + 3H2 → 2NH3 (The equation is balanced, but the formula for ammonia is NH3, not NH2)

7. 2HS + SO2 → 3S + 2H2O (The equation is balanced)

8. 3CaCl2 + 2H3PO4 → Ca3(PO4)2 + 6HCl (The equation is balanced. The formula for calcium phosphate is Ca3(PO4)2, not Ca(PO4)2)