nicotine is the main addictive chemical (drug) in cigarettes
When you see flames, its called A Chemial Change.Its where you can see that when you burn a fuel its A Chemial Change
Tell yourself not to buy Any cigarets and relax hang out with friends that do not smoke and forget cigarets even are in this world
hypobromous acid
about 10 packs
Gas Station
Purely physical
Formula: Au2O3
Erthquake, chemial and biological disasters
yup
Xenon tetrafluoride is XeF4
Unknown chemial properties
planets, chemial reactions, engry