Question

C=>CO=>CO2S=>SO2=>SO3K=>K2O

Answer 1

1) 2C + O2 -> 2CO
2CO + O2 -> 2CO2

2) S + O2 -> SO2
2SO2 + O2 -> 2SO3

3) 4K + O2 -> 2K2O

Answer 2

It seems like you have provided a sequence of chemical reactions involving various elements and compounds. Let's break down the reactions step by step:

1. C -> CO: This is the combustion of carbon (C) to form carbon monoxide (CO).

2. CO -> CO2: This is the combustion of carbon monoxide (CO) to form carbon dioxide (CO2).

3. CO2S -> SO2: This appears to be a chemical transformation where a compound represented by CO2S is converted into sulfur dioxide (SO2).

4. SO2 -> SO3: This is the conversion of sulfur dioxide (SO2) into sulfur trioxide (SO3).

5. K -> K2O: This is the reaction of potassium (K) with oxygen (O2) to form potassium oxide (K2O).

Please note that chemical reactions typically involve reactants and products, and they should be balanced equations with appropriate stoichiometric coefficients to indicate the quantities of each substance involved in the reaction.

If you have any specific questions about these reactions or need more information, feel free to ask!