Question

1. C-CO-CO2-CaCO3-CO2 2. C-CH4-CO2-K2CO3-KCl

Answer 1

1. 2C + O2 = 2CO

2CO + O2 = 2CO2

CO2 + CaO = CaCO3

CaCO3 (t)= CaO + CO2


2. C + 2H2 = CH4

CH4 + 2O2 = CO2 + 2H2O

CO2 + K2O = K2CO3

K2CO3 + 2HCl = 2KCl + H2O + CO2

Answer 2

It looks like you've provided two chemical reactions or sequences involving carbon (C) and various compounds. Let's break down each of them:

1. C-CO-CO2-CaCO3-CO2: This sequence represents a series of chemical reactions involving carbon and carbon dioxide (CO2). Here's what's happening step by step:

   a. C-CO: This could represent the combustion of carbon (C) with oxygen (O2) to form carbon monoxide (CO). b. CO-CO2: This represents the further combustion of carbon monoxide (CO) with oxygen (O2) to form carbon dioxide (CO2). c. CO2-CaCO3: This step suggests that carbon dioxide (CO2) is reacting with calcium oxide (CaO) to form calcium carbonate (CaCO3). d. CaCO3-CO2: This appears to be the decomposition of calcium carbonate (CaCO3) back into carbon dioxide (CO2).

2. C-CH4-CO2-K2CO3-KCl: This sequence also represents a series of chemical reactions involving carbon and various compounds:

   a. C-CH4: This could represent the conversion of carbon (C) into methane (CH4). b. CH4-CO2: This step suggests the combustion of methane (CH4) with oxygen (O2) to form carbon dioxide (CO2). c. CO2-K2CO3: This appears to be the reaction of carbon dioxide (CO2) with potassium carbonate (K2CO3) to form a different compound. d. K2CO3-KCl: This last step seems to involve the reaction of potassium carbonate (K2CO3) with another compound to produce potassium chloride (KCl).

Please note that these sequences are somewhat simplified, and the actual chemical reactions may involve more complex steps and conditions. If you have specific questions about these reactions or if you would like more detailed information, please feel free to ask.