Choose "extinct" if the species is extinct and "endangered" if the species is endangered. two hundred years ago, billions of passenger pigeons lived in north america. the last known passenger pigeon died in the cincinnati zoo in 1914.

What is the independent variable in this investigation? mass volume sample number substance density

In a heat engine of 1000 j of heat enters the system and the piston does 500 j of work what is the final internal energy of the system if the inital energy was 2000 j we have to do all of these down here 1)write the equation 2)list out your know variables 3)plug the numbers into the equations 4)solve 5)write your solution statemtn that includes inital energuy and final energuy added

What is the volume of 3.2 moles of chlorine gas (cl2) at 295 k and 1.1 atm?