Question

4P+O2 =C6 H12 O6 + O2 =C2 H2 + O2 =(С валентностью)​

Answer 1

1)4 P + 5 O2 → 2 P2O5

2) вы неверно написали

3)2C2H2 + 5O2 → 4CO2 + 2H2O

Answer 2

It seems like you're writing a series of chemical reactions, but the reactions you've written are not balanced, and some of the chemical formulas are unclear. Let's try to balance and clarify these reactions:

1. 4P + O2 -> C6H12O6 + O2

It appears you want to represent the process of photosynthesis, where carbon dioxide (CO2) and water (H2O) are converted into glucose (C6H12O6) and oxygen (O2) in the presence of light and chlorophyll. The balanced equation for photosynthesis is:

6CO2 + 6H2O + light energy -> C6H12O6 + 6O2

This equation shows that 6 moles of carbon dioxide and 6 moles of water, in the presence of light and chlorophyll, produce 1 mole of glucose and 6 moles of oxygen.

2. C2H2 + O2 -> ? (The product is not specified)

In this equation, you have acetylene (C2H2) reacting with oxygen (O2), but you haven't specified the product. If you want to complete the reaction, you need to specify the product that forms when acetylene reacts with oxygen. One possible product could be carbon dioxide (CO2), which is a common product of combustion reactions.

3. С валентностью (С with valency)

The notation "С валентностью" simply means "C with valency." Carbon (C) typically has a valency of 4, meaning it can form up to four chemical bonds with other elements.

If you have any specific reactions or questions about chemistry, please provide more details, and I'd be happy to assist you further.