Question

СРОЧНО!!! Складіть рівняння реакцій за наведеними схемами(поставте коефіцієнти) CH4 + O2 CO2 + H2O P + O2 P2O3 Cu2O + C → Cu + CO2 K2O + HNO3 → KNO3 + H2O

Answer 1

Объяснение:

вроде правильно решил.

Answer 2

Відповідь:

CH4 + 2O2⇒ CO2 + 2H2O

4P + 3O2 ⇒2P2O3

2Cu2O + C → 4Cu + CO2

K2O + 2HNO3 → 2KNO3 + H2O

Пояснення:

Answer 3

Balancing Chemical Equations

To balance the given chemical equations, we need to ensure that the number of atoms of each element is the same on both sides of the equation. Let's balance each equation step by step:

1. CH4 + O2 → CO2 + H2O

To balance the equation, we need to start by counting the number of atoms for each element on both sides of the equation:

Carbon (C): 1 on the left, 1 on the right Hydrogen (H): 4 on the left, 2 on the right Oxygen (O): 2 on the left, 3 on the right

To balance the equation, we can start by balancing the carbon atoms:

CH4 + O2 → CO2 + H2O

Next, we balance the hydrogen atoms:

CH4 + O2 → CO2 + 2H2O

Finally, we balance the oxygen atoms:

CH4 + 2O2 → CO2 + 2H2O

Therefore, the balanced equation is:

CH4 + 2O2 → CO2 + 2H2O [[1]]

2. P + O2 → P2O3

To balance the equation, we count the number of atoms for each element:

Phosphorus (P): 1 on the left, 2 on the right Oxygen (O): 2 on the left, 3 on the right

To balance the equation, we can start by balancing the phosphorus atoms:

P + O2 → P2O3

Next, we balance the oxygen atoms:

4P + 5O2 → 2P2O3

Therefore, the balanced equation is:

4P + 5O2 → 2P2O3 [[2]]

3. Cu2O + C → Cu + CO2

To balance the equation, we count the number of atoms for each element:

Copper (Cu): 2 on the left, 1 on the right Oxygen (O): 2 on the left, 2 on the right Carbon (C): 1 on the left, 1 on the right

To balance the equation, we can start by balancing the copper atoms:

Cu2O + C → 2Cu + CO2

Next, we balance the oxygen atoms:

Cu2O + C → 2Cu + CO2

Finally, we balance the carbon atoms:

Cu2O + 2C → 2Cu + CO2

Therefore, the balanced equation is:

Cu2O + 2C → 2Cu + CO2 [[3]]

4. K2O + HNO3 → KNO3 + H2O

To balance the equation, we count the number of atoms for each element:

Potassium (K): 2 on the left, 1 on the right Oxygen (O): 1 on the left, 3 on the right Nitrogen (N): 1 on the left, 1 on the right Hydrogen (H): 1 on the left, 2 on the right

To balance the equation, we can start by balancing the potassium atoms:

K2O + HNO3 → 2KNO3 + H2O

Next, we balance the oxygen atoms:

K2O + HNO3 → 2KNO3 + H2O

Finally, we balance the nitrogen and hydrogen atoms:

K2O + 2HNO3 → 2KNO3 + H2O

Therefore, the balanced equation is:

K2O + 2HNO3 → 2KNO3 + H2O [[4]]

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