?

a) When most coal is mined it is contaminated with sulfur-containing compounds; when the coal is burned, the sulfur compounds are converted to sulfur dioxide, SO2 gas. Coal from one mine was analyzed as containing 2.12% S, by mass. When 3.5x1^5kg of this coal is burned, what mass of sulfur dioxide gas, measured at 25 degrees C and 738 mmHg, would be produced?

Is there enough information to answer this?

b) Assuming gasoline is octane, C8H18, with a density of 0.704g/mL, what mass of carbon dioxide is released into the atmosphere when a 55-L tankful of gasoline is burned?

If you could also show how you got the answer that would be greatly appreciated! :) Thank you so much

For a car which one is considered good, i think its called gas mileage, in L/100km would a higher one such as 20L/100km be better than a lower one, such as 5.6L/100km?

Thank you

Hi, so i sent in an application to one school in Ontario and paid for it. I was wondering if I could apply to another school now?

Thanks.

Hey there, I am applying to a school in Ontario from out of province, and it says to put my OUAC reference number on my transcript. But I was just wondering where I put it? Should it put it beside my name on the outside of the envelope? Or should I put it inside on a separate piece of paper or write it on the transcript?

Thanks!

Hi, i just need help on one thing. I have the function, g(x)=x^2-4x+7cos(x) over [-4,4] so I took the derivative of that, which i found to be, g'(x)=2x-4-7sin(x). Is that right? If not what is it. Then i need to solve for x for g'(x) and I have no idea how.

If someone could help, and show the steps, that be greatly appreciated.

Thanks so much.

Hello, im in grade 12, and after high school i want to go to university, i was thinking of going to carleton university in Ottawa, but since i live in Manitoba im gonna have to move, so, i was wondering if you think it would be a good idea too, i have a job here at home, its part time. And I have a car.

So do you think it would be a good idea, or do you think i should just stay home?

Also, what do you guys think would be a reasonable budget for an apartment for me, for going to university, and having a car, and hoping that id be able to get a job there?

Or do you think its a terrible idea and that i should just stay home?

Hi, i have some physics homework, and i have no idea how to do it.

1) What is the intensity of 25 dB?

2) What is the sound intensity of 5.86x10^-5 W/m^2?

And if you can show your work please, and use the terms I and Io,

thanks! :)

Hi. I got a tattoo on my forearm, and when I bend my arm, it squishes together, but now there are small cuts it kind of looks like.

Is this okay?

It's still healing. I got to 3 days ago.

Hi, I'm a 17 year old male and about 5'9 and I was wondering if I got a small tattoo in my forearm if it would stretch, I work out, and I'm not sure if I'll grow or not again.

So, would it stretch? If so, where's a good idea to get a tattoo where it won't stretch if I so grow?

Thanks! :)

Hello, I need some books to read, I like books that are remakes of fairy tales, for example red riding hood, beastly, and the child theft. Do you guys have any others?

Thanks. :)

Hello, so my airbrush started acting up today, i took it apart to clean it, and i put it back together, then when i went to go use it, air started coming out where the paint is suppose to come in, so it makes bubbles in the paint, has anyone encountered this problem before and can help me fix it?

Thanks,

Hello, i live in Manitoba, Canada, and i was just wondering, at 16 years old, how much more get taken off my paycheck, i used to get FED and E.I. when i was 15, so i was just wondering that if at 16 more is taken off, or just at 18?

thanks,

Hello, so my dad and my grandma on my mums side, they both had type 2 diabetes, and both died from it.

I was just wondering, for me, what are the chances of getting diabetes?

Thanks,

and I'm 16 by the way.

Hello, so i tried having sex the other day with my girlfriend, and when we were kissing i was hard, but when we started to undress each other my erection went away, then it came back when we were getting dressed, and i figured it was from nerves,

so, my question is, how can i make sure i get up? and tips to not be nervous while having sex,

thanks in advance, (:

Hello, so what size condom should buy, my penis is 1.5 inches in width. So, would a condom have to be that size? Or would a 2.09 work for a width size?

Also, when having sex do a put a condom on at the beginning or just before I'm about to stick it in there? Like would I need to wear a condom if she gives me a b***job?

Thanks.

Hello, im going to be having sex soon, dont say anything about age, this is my decision. but the girl im going to have sex with is a virgin. so, what are the chances that her hymen is already broken? and if it isnt, do i still just put my thing into her, or do i have to do something else?

Thanks :)

hello, i am asked to turn these coordinates into slope intercept form, then turn that into slope point form, soo, how do we turn coordinates into slope intercept form,

then, how do you turn slope intercept form into slope point form,

or, you can show the other way, the coordinates into slope point form,

thanks a lot, (:

Hi, i have a question that i cant solve, y-4= -4/3(x+2)

can someone walk this through for me, thanks, (:

Hello, looking for some xbox 360 games, and i love rpgs, i have skyrim, fable 3, and brink.

So, what would you recommend?

Thanks,

Hello, could anyone tell me where are some enchanting And alchemy stores?

Thanks.