Question

Запишіть формулу продуктів реакцій (врахувати валентність елементів) та урівняйте їх. Al + Cl2 → Zn + O2 → P+ H2→ ПОЖАЛУЙСТА ОЧЕНЬ СРОЧНООО!!!​

Answer 1

Ответ:

• 2Al + 3Cl2 → 2AlCl3
• 2Zn + O2 → 2ZnO
• 2P+ 3H2→ 2PH3

Answer 2

Chemical Reactions and Balancing Equations

To write the formulas of the reactants and products and balance the equations, we need to determine the valence of the elements involved in the reactions. Here's how we can do that:

1. Reaction 1: Al + Cl2 → - Aluminum (Al) has a valence of +3. - Chlorine (Cl) has a valence of -1. - To balance the equation, we need to ensure that the charges on both sides are equal. Since chlorine is diatomic (Cl2), we have two chlorine atoms on the right side. - The balanced equation is: 2Al + 3Cl2 → 2AlCl3 [[1]].

2. Reaction 2: Zn + O2 → - Zinc (Zn) has a valence of +2. - Oxygen (O) has a valence of -2. - To balance the equation, we need to ensure that the charges on both sides are equal. Since oxygen is diatomic (O2), we have two oxygen atoms on the left side. - The balanced equation is: 2Zn + O2 → 2ZnO [[2]].

3. Reaction 3: P + H2 → - Phosphorus (P) has a valence of -3. - Hydrogen (H) has a valence of +1. - To balance the equation, we need to ensure that the charges on both sides are equal. Since hydrogen is diatomic (H2), we have two hydrogen atoms on the right side. - The balanced equation is: 4P + 6H2 → 4PH3 [[3]].

Please note that the valence values mentioned above are general valences and may vary in specific compounds or situations.