3science questions! i'm stuck on my last 3.
#1 compare and contrast chemical change and physical change.
#2 compare and contrast a gas and a plasma.
#3 what state of matter has the electrons separated from the nuclei of the atoms?
gas
solid
liquid
plasma

nanotechnology is a powerful tool in biomaterials research as it creates numerous possibilities for the engineering of functional molecules. nano-bio refers to projected ability to incorporate biomimicry into various materials at nanoscale.  

answer

fusion: the energy source of stars. the energy released from the collapse of the gas into a protostar causes the center of the protostar to become extremely hot. when the core is hot enough, nuclear fusion commences. fusion is the process where two hydrogen atoms combine to form a helium atom, releasing energy.

hope it

answer: mercury

explanation: