Propose a mathematical equation to calculate tje charge on an ion from the number of protons and electrons in an ion.

Which feature do highland climates have that lower elevation areas do not?

Calculate the molar mass of aluminum oxide (al2o3). express your answer to four significant figures.

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