just electrons
Formula: Au2O3
Purely physical
Erthquake, chemial and biological disasters
yup
Unknown chemial properties
planets, chemial reactions, engry
Silicon reacts with fluorine
nicotine is the main addictive chemical (drug) in cigarettes
Bromine is an element. It has both physical and chemial properties
hypobromous acid
Machinery, instruments and food products. Also, chemial products, furniture and pharmacueticals
A rearrangement of the atomic array of matter which results in a change of physical properties.