2. Solid air pollutants called may reduce the energy available for photosynthesis.
3. If nitrogen and sulfur oxides dissolve in raindrops, the result is
rain.
4. Mercury and lead are examples of pollutants called
5. The pollutants in question 4 enter food chains from the
6. Acid rain has a pH value of less than
7. CFCs are human-made chemicals that contain the element

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

How many moles of oxygen gas are produced from the decomposition of six moles of potassium

One similarity and one difference between an element and a mixture of elements