Read the statement.

In the combustion reaction of sulfur dioxide, the mole ratio between sulfur dioxide and sulfur trioxide is 1 to 1.

Which option can be the chemical equation of the combustion reaction of sulfur dioxide?

2SO2 + O2 → 2SO3

SO + O2 → SO3

SO2 + O → SO3

SO2 + O2 → SO3

B?

I don't agree with B, The equation is balanced; however, SO is not the formula for sulfur dioxide.

I would choose A also but with this caveat. The ratio of 2:2 is 1:1 (in my opinion) but I have seen some questions of this type where another choice (perhaps something like

2SO2 + O2 ==> 2SO3 as one choice and another equation of
SO2 + 1/2 O2 ==> SO3). That wasn't done here so I think A is the definite answer but in those other cases the person making up the problem differentiated between 2:2 and 1:1.

Ok thank you so much your a huge help is it okay if I post more questions if yes how many more could I post if its ok with you

Yes, it's OK with me. I prefer that you post them one by one; i.e., not one post containing four or five different questions. As long as you're posting questions that will help and you're providing what you think are the correct answers then I say post away. Let me give you a pointer or two. First, when you post your answer tell me why you picked that response. That way I'll know your thinking and can keep you on the right path. Second, don't guess. If you truly don't know, I would rather you say you don't know and then tell me what it is that is bugging you about the problem. If I know WHY you're having trouble I know how to pitch my response to you. Answers like "I'm confused" or "I have no idea" doesn't help me help you. "I'm confused because ........" tells me where you're going and what you're missing.

To determine which option can be the chemical equation for the combustion reaction of sulfur dioxide, we need to understand the mole ratio between sulfur dioxide (SO2) and sulfur trioxide (SO3) in the reaction.

According to the given statement, the mole ratio between sulfur dioxide and sulfur trioxide is 1 to 1. This means that for every 1 mole of sulfur dioxide, 1 mole of sulfur trioxide is produced.

Now let's analyze the options:

Option A: 2SO2 + O2 → 2SO3
In this equation, the mole ratio between sulfur dioxide and sulfur trioxide is 2 to 2, not 1 to 1. Therefore, this option does not match the given statement.

Option B: SO + O2 → SO3
This equation does not contain sulfur dioxide (SO2). Thus, option B cannot be the correct equation.

Option C: SO2 + O → SO3
In this equation, the mole ratio between sulfur dioxide and sulfur trioxide is again 1 to 1, as required by the statement. Therefore, option C satisfies the given condition.

Option D: SO2 + O2 → SO3
Similar to option C, this equation also satisfies the requirement of a 1 to 1 mole ratio between sulfur dioxide and sulfur trioxide.

Based on the analysis, the correct option for the chemical equation of the combustion reaction of sulfur dioxide is Option D:

SO2 + O2 → SO3