Question

Перетворити схеми хімічних реакцій на хімічні рівняння: Cu O → Cu + O²; Na NO³ → Na NO² + O²; H²SO⁴ + K → K² SO⁴ + H²; (розставте коефіцієнти) ​

Answer 1

Ответ:

2CuO=2Cu+O2

2NaNO3=2NaNO2+O2

H2SO4+2K=K2SO4+H2

Answer 2

Conversion of Chemical Reactions to Chemical Equations

To convert the given chemical reactions into chemical equations, we need to balance the equations by adding coefficients to the reactants and products. Let's go through each reaction and balance them step by step:

1. Cu + O → Cu²⁺ + O²

To balance this equation, we need to ensure that the number of atoms of each element is the same on both sides of the equation.

- The left side has 1 Cu atom and 1 O atom. - The right side has 1 Cu²⁺ ion and 1 O² molecule.

To balance the equation, we can add a coefficient of 2 in front of Cu²⁺ on the right side:

2Cu + O → 2Cu²⁺ + O² [[1]]

Now, the equation is balanced with 2 Cu atoms and 2 O atoms on both sides.

2. NaNO₃ → NaNO₂ + O₂

- The left side has 1 Na atom, 1 N atom, and 3 O atoms. - The right side has 1 Na atom, 1 N atom, and 2 O₂ molecules.

To balance the equation, we can add a coefficient of 2 in front of NaNO₂ on the right side:

NaNO₃ → 2NaNO₂ + O₂ [[2]]

Now, the equation is balanced with 2 Na atoms, 2 N atoms, and 4 O atoms on both sides.

3. H₂SO₄ + K → K₂SO₄ + H₂

- The left side has 2 H atoms, 1 S atom, and 4 O atoms. - The right side has 2 K atoms, 1 S atom, and 2 O atoms.

To balance the equation, we can add a coefficient of 2 in front of K₂SO₄ on the right side:

H₂SO₄ + 2K → K₂SO₄ + H₂ [[3]]

Now, the equation is balanced with 2 H atoms, 2 S atoms, and 4 O atoms on both sides.

Therefore, the balanced chemical equations are:

1. 2Cu + O → 2Cu²⁺ + O² 2. NaNO₃ → 2NaNO₂ + O₂ 3. H₂SO₄ + 2K → K₂SO₄ + H₂

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