What is the concentration of O₂(g) in parts per million in a solution that contains 0.008g of O₂(g) dissolved in 1,000g of H₂O(l)? 1) 8ppm

2) 800ppm

3) 0.8 ppm

4) 80 ppm

There are 6.022, 104 atoms of hg in 1 mole of hg the number of atoms in 45 moles of hg can be found by multiplying 4.5 by 6.022, 102 which is the number of atoms in 4.5 moles of hg, correctly written in scientific notation with the correct number of significant figures? 0 21,109 0 21,100 271, 1024 27.099, 100 mark this and retum save and exit submit

If two atoms are bonded to a central atom with no lone pairs,how will they be arranged

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