What are advantages and disadvantages  of r12,amonia, r134a,and r22?
494063
you may try looking for their MSDS.
785066
Advantages being that when it works its wonderfull. The quality is really impressive and it works just like a phone. However, if you have a slow or unreliable connection it can cut you off a lot. Sometimes there are problems getting it to connect, and that can be rather frustrating.\n\nIn other words, when it works its great but sometimes it doesnt work
1137561
http://www.pnas.org/cgi/content/full/102/19/7014
566997
There is a lot of information here, plus a large bibliography:\n\nhttp://www.dsi.unifi.it/ANNxDAR/
860898
advantages - more workers etc.\ndisadvantages - more people with less space (the cities expand onto the agricutlural land) and more food (agricultural products, for more people) have to be produced on the smaller space of land. in general, more people with less space for food. also the more people create more pollution.\n\nhope that helped! xox good luck!
756292
4-4-8 is I believe a faster timing for more performance. 3-3-8 I think is alittle more stable but its still fast. You must be talking about DDR2 memory.
835616
N3-   no need of hybridisation. it is a monoatomic ion. No need of structure again.\n\nCO3-  the hybridisation is sp2 on carbon. it is trigonal planar.\n\nNO3- too is trigonal planar. Hybridisation is sp2 again.\n\nIn BF4- the hybridisation is sp3. And the shape is tetrahedral.\n\nCheers
672742
IBM used has some great P3 notebooks. I have a T23 and love it. A P3 is not power hungry and you get decent battery life. IBM is rock solid - I have seen IBM Think Pads take a fall that you would think would kill it but they are tough!!! I would not recommend a Dell as they are fragile - Very Fragile!!! For around $500 you have a very serviceable and capable computer and IBM quality. IBM also has one of the best support pages should you ever need it!! See Sources...
732538
1RR, 2 Rr, and 1 rr   (a genotypic ratio of 1:2:1)\n\nwe just learned this in my bio class too!\nyou can use a punnett square to solve problems like this. you can look up punnett squares online, but you would set one up with an R and an r on both sides.\n\ni hope that helps!
88476
Advantages: convenience, vast source of knowledge at your fingertips\n\nDisadvantages: could be harmful if you have kids or a horny husband, also could cause addiction
83940
Advantages: Bring communication from the outside world to those who are isolated by geography or political repression but have the necessary receiving equipment. Such communications can educate; can save lives by warning about impending natural disasters; can inspire change by relating the lives of those in freer societies. Imaging and directional RF receiving satellites can help search and rescue, evacuation planning. \nDisadvantages: Every potentially advantageous function can be used disadvantageously. Can enable repressive regimes to propagandize, spy, direct weapons fire.
20379
They're simply two different competeing formats that developed from two separate consortiums of manufacturers.  -R was the original (developed by Pioneer) and had better compatibility with existing DVD players at the time but this gap has been closed.  +R was developed by Ricoh, Sony and a few others, and came out about 1 year after -R.\n\nI believe there are some differences in the reflectivity of the two formats, since -R only writers cannot burn +R discs and vice-versa.  The main advantage of +R is that all of the current writers support burning up to 16x (only on 16x media - I've only seen -R burners go up to 8x).  Also, I believe dual-layer media is +R format only, but I'm not 100% sure.\n\nToday, other than burn speed, the point is moot since every writer on the market supports both formats and nearly all recent DVD players will read either format (including dual-layer).  Cost of the media between the two formats is about the same as well.
66648
If you ask me, the main advantage is the security and reliability provided by Linux. Windows lacks both\n\nUse the following links to know more\n\nhttp://linux.iguana.be/linux/advantages.php\nwww.linuxplanet.com/linuxplanet/reports/1176/3/\nhttp://www.bretschneidernet.de/linux/advantages.html.en\nwww.uselinuxathome.com/ENwhylinux.htm\nwww.webcabcomponents.com/ solutions/linux/advantages.html
890894
C12H22O11+12O2-------12CO2+11H2O+E
905156
Advantage and disadvantage:\n\nPlants with high photosynthesis rates grows faster but has a shorter term of life.
13280
14, 23, 28, 31, 43 (19)
904821
Try here:\n\nhttp://www.fccc.edu/docs/publications/PRN/PRN-news-spring2002-pg5.pdf#search='Cold%20NSS%20side%20effects'