killerfly1670

Chemistry teacher did a demonstration of this, and told us to write an essay on why it released heat.

The reaction is Fe2O3 + 2Al -> Al2O3 + 2Fe

I know it is something to do with the bond energy, but since the enthalpy of aluminum oxide is ~ -1600 kj/mol, but only -800 for iron oxide, shouldn't energy be required to form the aluminum oxide bonds? Also if the aluminum is smaller it should hold the electron cloud of the oxygen better than iron, so the orbits should be more distorted than for iron oxide, and when they're more distorted don't they contain more energy?

tl;dr: im confused on the whole bonding thing, specifically what happens to the electrons which makes them contain more energy in iron oxide than in aluminum oxide

I am interested in buying a new nVidia GeForce 9800 GT (link: http://www.newegg.ca/Product/Product.aspx?Item=N82...

This video card allegedly draws 400W of power. It says that it requires +12V DC @ 26A. My power supplies 12V rail only goes up to 18A, which is a measly 216W of power, however, my current video card (nVidia GeForce 7600) requires 300W of power and only gets 216W. Will this power supply be able to support the 400W card? Can the rest of the power be drawn from the PCIe slot or will it just not run?

I recently got a bunch of fireworks that I'll be lighting off for a friends bday. I want to light em all at once, but by the size of the fuses, they last about 5 seconds. I wanted to buy a detonator which uses electricity on the internet, but searching around I found they aren't cheap. Can anyone advise me on the amount of current I would need to light the fuse? I know that each fuse is different, so give me the number that would surely light any fuse.

For example, I'd like to turn my presentation into a stand-alone program that will run full screen and have all the animations and pictures.

If this isn't possible, I'd at least like to turn it into a .SWF file that could be embedded into a website.

I want to store and do simple calculations with numbers that exceed the limits of the decimal datatype, like 9,999,999,999,999,999,999,999

Storing them in a string is simple, but I would like to do calculations with them, and hopefully efficient ones too.

Basically, I have four partitions:

1. The partition with my OS (Win XP)

2. The partition which I reformatted to install Linux. Its formatted in EXT3 file system. This is the one to be formatted

3. 1GB partition used as swap space during Linux installation

4. 700MB partition that is unusable space (physically broken, when I tried to write to it, it would crash)

Songs similair to "In a Gadda da Vida" by Iron Butterfly.

Theres a person who really like this kinda music and I want to make them a CD for their birthday.

I just got Fallout 3, but when I started it and played the first cutscene, it started skipping, as in it would pause for a half second every 2 seconds.

I know my graphics card can handle it, it was set to 800x600, and after the cutscene, the actual game ran very smoothly. I've noticed the same thing in other games, like Mercenaries 2.

I am using an nVidia GeForce 7600 GS (which I've had problems with before), a 2.4 GHz Intel Pentium 4 Processor, 2GB GB DDR RAM (2x1GB).

Any ideas as to the cause?

Basically, I have a boat made from cardboard, and it will have a weight in it. It doesn't need to go anywhere, so its just one box with two smaller boxes on the sides.

What I need to know is, to where will water go up to on my boat? I can measure the volume of the boat, and the weight. I need a formula or calculations which will tell me where the water will go up to. I don't know much about buoyancy or any of this kinda stuff, so please don't use complicated terms.

They just randomly close. They don't start to lag or anything, just turn off... IE says "Internet Explorer closed unexpectadly", Firefox gives a window to report the crash, and Google Chrome give an error that says "Whoa, Chrome crashed! Restart?"

I don't know why, and it started today. It doesn't happen on any particular sites...

Any ideas?

is there any way to find out if they actually blocked that or if im just retarded and cant find the link? and is there any way to see the photos anyways?

i cant click the tracking at all, its impossible the little button is in the way

I have a lock and sumtimes after dungeons i run out of shards and i need to get summore. its easy for me just fly to a area where the stuff a bit lower and use my techniqu of send my voidwalker in, corruption, curse of agony, immolate, drain soul. but it gets anoyying having to click tha same sequence every time, so i keep trying to make a macro but i cant get it to work. can any1 help me?

so thats send my voidwalker,

corruption,

curse of agony,

immolate,

shadow bolt,

drain soul

the pestilent prefix gives 175 psn over 6 secs and anthrax gives 50 psn over 6 secs. its hsould be 175+50=225 psn over 6+6=12 secs.

it just wont let me go in for 5 mins or so, and internet is always fine and i can join other realms and i can join open bnet, but it wont let me join closed bnet on my realm. this usually happens wen im xfering. I xfer alone by making a game, dropping my stuff and joining it again really quickly cause game stays online until 1 min after there is noone there. so i will make a game to put all my required items that i xfer in backpack, i make new game cause usually that first one takes a min or two, i am in new game and i drop stuf go really quick and then i redo casue i never xfer more than 4 things at a time to be safe. so then when i am making my 2nd xfer game (4th game overall) it says "cannot join bnet" as soon as i go back from the game to the char pickign screan.

why the hell dos it do this?

i want to make abot for mIRC that can perform simple things and that has its own nickname. how do i gotta do dat?

if defined %1%2 (goto :answer1) else goto :answer1

i have later in my btach file "dir %1%2"

if %1%2 are defined in the command interpreter (like search.bat "C:\*.sys") i want it to go to :answer1

if %1%2 are NOT defined (like simply "search.bat",) i want it to skip :answer1 and go straight to :answer2

is my line of code right ? if not , wat is the right line of code?

i wanna make a dynamic ip thats always changing.