Kurraga

Hi, I'm terrible at chemistry. I've got a problem that says

"A [volume] mixture of Hydrogen methane and carbon dioxide is explaoded with [volume] of oxygen" What does this mean?

And then the smae mixture is "treated with KOH" what does that mean?

I'm looking for the equations (Mostly the reactions, balanced or unbalanced is fine) I'd use to solve this this (I can do the maths bits myself). I don't want the full solution so I didn't post the exact question. Also explanation of why the reactions occur would be appreciated.

I'm assuming you get water with the Hydrogen and the Oxygen, is that correct? If you do get water would that not be counted when considering the mixture (because it's not a gas)?

Any help would be appreciated.

I'm on my phone, and I keep accidentally hitting thumbs down instead of thumbs up on an answer I liked. It's really frustrating because I don't want the person to think people don't like their answer.

I don't know how to fix it. Is it possible to undo or fix it? If so then how?

Is there a way to find the actual length of a curve over a certain interval?

Like for example. The line y = x. The length of the interval between (0,0) and (1,1) is √2

Or a circle, x²+y²=1 the perimeter is π

What about a more complicated example?

Say, y = e^x or y=x²?

I know I can differentiate them to get the gradient at any point, and integrate to get the area under them.

Is there anything I can do to get the length of the line? Is it possible but really hard? Is the length of the line undefined in some cases, like how fractals have perimeters approaching infinity?

Anyone have information on this they could share with me?

Like if you change your profile picture on something a lot, but keep a certain theme.

For example, my avatar on Twitter (@Kurraga) is a picture of Rigby from Regular Show, and whenever I change it it's just another Rigby picture.

Do you do the same thing? It could be a picture for Twitter, Facebook, this site or just anything really. What's the theme of picture you have?

One of your "recommended questions? On the main page? In the Polls and Surveys page? Am I one of your contacts? Did you happen to stumble upon my profile and see my questions? Etc. Etc.

I'm curious as to how people come across the questions they answer usually.

Yahoo says it's highly recommended, but I'm here all the time anyway, especially when I have questions I want answered, so I have them disabled. Do you enable them or disable them? Why / why not?

Then they don't even choose a best answer. That should be reported as false advertising. Technically any question could give you 10 points. (I do plan on choosing a best answer for this question by the way). I don't know where I'm going with this.

I don't mean if they link to it and say nothing else, but if they give an otherwise reasonable answer, but at the end say something like "answer mine please! [Link to Q]" is that against the rules and can I report them for it? If it isn't, do you think it should be?

I don't know much about this book other than that it's apparently Twilight fan fiction erotica. So I was hoping someone here would be a little more knowledged and could explain the title of the book to me (I don't plan on reading it) thanks. Sorry if this has been asked before.

I've heard rumors. Can anyone confirm this or is it just heresay?

Sorry if this has been asked before

The choices are:

Tokyo, Japan

Madrid, Spin

Istanbul, Turkey

I'm rooting for Tokyo.

Where do you live?

Have you been overseas? Where?

Where are some places would you like to visit?

Me:

Australia.

No

USA - Texas (I have family there) and maybe New York or something.

Great Britain

What did you think first?

e^y or 10^y?

Persally I'm inclinded to thing e.

Personally I like doing it because it's something I'm knowledgeable in and I like explaining how to get to a certain result, the methods involved and the reasoning behind those methods. Although I put a lot of time into some of my answers and I feel I've wasted my time if the person asking the question wasn't actually interested in learning at all and just wanted answers for their homework.

That's not to say I'm against homework questions, I just want someone to learn from my answers, and people who don't read or try to follow the bulk of what I (or other people who answer questions beautifully) type won't get anything out of it.

I like helping people learn, so I often try to explain everything I do so people can replicate it for solving similar problems in the future. To do this I need to know what they understand so far so I know what they struggle on.

Which brings me to my actual question:

What sort of maths questions do you like answering here?

I appreciate it when there's a question where the person asking it has shown they at least attempted the question, so that I know they are genuinely stuck and need help, and I can easily see where they went wrong and explain why what they did was wrong.

Questions I really dislike are the ones that are just a block of 5-10 questions, obviously directly copied from a textbook. Textbook work is boring, so I assume people who do that just don't want to do their work, or don't care enough to learn how.

What are your thoughts?

BONUS QUESTION:

Do you like coffee?

I don't get the sailing, but we got another gold finally so that's good. But why is the laser sailing based on previous races? What if the track or swimming races worked like that?

Like if people star your question, it gets you a point (maybe up to 10 or so per question). Because I think people who ask good questions contribute positively to the site, and I want to encourage worthwhile questions.

They are being beaten by Kazachstan. Do you think they feel like Australia feels NZ is beating them? Also interesting fact: Kaz and NZ both have 0 silver medals and Australia and Russia have over 10 but two behind in gold the other.

Like how the 100m sprint in the event of athletics, in the olympic gymnastics, is there an equivilently anticipated event in gymnastics? Like the floor finals?

The way it works now it it only looks at how many gold your country has won, then separartes countries with the same number of gold by silver, then bronze.

This really isn't fair to countries that have a ton of silver medals, but one of two less Gold than countries with one bare any or even no silver.

For example Australia right now is sitting in rank #19 with 1 gold 10 silver 6 bronze. and the nexst 5 countries above us have only 1 or 2 silver medals, but because they have an extra gold they are considered "better".

Another thing I've seen is people counting the total number of medals, but that isn't fair to the people that have won gold.

I think it should be based on pounts, for example. Maybe 1 for a bronze, 2 or 3 for a silver, 4 or 5 for a gold (Just as long as Gold>Silver>Bronze), then the tally ranks the countries by the number of "points" each has. (This would mean china would probably be beating america now, as it should).

Do you think it's unfair that silver medals don't count for anything? How would you rank it if you could decide a system? (without just deciding what would make your preferred country best off).

For example, when people put stuff like "me lol" or "my head" in the source section.

People who ask questions in things like maths which are basically just a list of maths questions, with no evidence that they've attempted it at all or understand the concepts behind what they're doing.