insane_alien

ijust told you how to calculate the standard enthalpy of reaction. the whole bit about the difference in enthalpy between products and reactants. the standard symbol is correct. if it is not at STP then putting it in is inncorrect and a note of the temperature must be made.

vlc works fine.

you can work out the enthalpy of reaction at any temperature. even if the reaction cannot take place at that temperature. for the sake of consistency the standard was taken to be at STP. The enthalpy of reaction is calculated by taking the enthalpies of formation of the products and subtracting the nethalpies of formation of the reactants. this will give you the enthalpy of reaction.

i think the heavier guy would win. volume goes up faster than surface area so the extra weight should help him ignore air resistance a little bit more than the light guy. if they were both the exact same shape then it would be the heavier guy.

ionized gas. unless you're talking about biological plasma then all i know is that it is a part of blood.

it is but since deuterium is twice as heavy as normal hydrogen it afftects the kinetics of some reactions. specifically a lot of them slow down.

so expect the servers back up sometime around 2050 then?

nah, just point your spectrometer at the fireball. although, that will only give you the surface temperature. i think. the internal temperature would need to be calculated from that. a megaton nuclear bomb will produce temperatures hotter than the suns core in general though.

well H2O is water. anything else, isn't. its like saying what other letter other than d will be the same as d.

if the EM radiations frequency lies withing the visible spectrum then yes it will be visible.

i want to know your source on this.

no. distance is always positive. displacement however can be negative as is also has direction as well as magnitude.

nope, wouldn't have any affect at all. pnagloss is right in that the matter will still be exherting the same pull on the larger scale.

i^2 is negative 1 remember. so (3i)^2 is the same as 9*-1 which is -9. -9+4 = -5 it all works out if you just use foil

that would require a preffered reference fframe of which there are none. i think you should study relativity a bit more closely.

the blackhole would evapourate nearly instantaneously therfore providing a difference.

and you need to pump all the air out of the system. so much so that the pressure will be lower than the outside of the ISS.

theres a java simulation on talk.origins somewhere. IIRC it was very generous with breeding ages and lifetimes and assumed that all the women were constantly pregnant from a very young age and it still fell short of the 6billion alive today mark. and way more than half of them were small kids.leaving only around 1 billion adults to do work.

if they can get a gun they can get to a drug store. or at the very least, bleach is commonly available. also, the point is moot, if you aren't serious, you aren't going to be going for a gun.

space junk isn't dense either. but there will be a minimum density for capturing all of the suns rays practically (you don't have a few masssive ones out by pluto only able to gather a few watts per square meter. and no tiny ones getting incinerated close to the sun)

if you have number x+iy you do (x+iy)(x+yi) you can use FOIL for this form like an ordinary equation.

yes, nuclear bombs are very boring in that regard while the effect certainly looks impressive, when you break it down nothing extraordinary is happening, well, outside the source of the energy anyway.

well, a nuclear bomb will ionize just about everything close to the bomb, thiswill be plainly obvious as everything within the fireball is ionized(although it is possible for a large chunk of solid matter to partially survive ionization if it takes longer than the lifetime of the fireball to ionize all the way to the center. so, oxygen molecules will be ripped appart and the oxygen atoms themselves will be ionized. its not really destroyed though.

no, darkmatter has normal gravity, otherwise we would need another form of matter with an attractive force.

ah the old nuke in a paintcan explosion.