A baseball player hits baseball weighing 0.2 kg (200n g = .25 pounds). At the top of its projector it is 15 meters above the ground.
What Is its potential energy at the top of its
path?

Consider the two electron arrangements for neutral atoms a and b. are atoms a and b the same element? a - 1s2, 2s2, 2p6, 3s1 b - 1s2, 2s2, 2p6, 5s1

Write the complete balanced equation for the reaction between lead (iv) oxide (pbo2) and water (h2o).

Which formula equation represents the burning of sulfur to produce sulfur dioxide? s(s) + o2(g) 4502(9) 2h2s(s) + 302(g) —> 2h20(0) + 2502(9) 4fes2+1102 —> 2fe2o3 + 8502 2802(g) + o2(9) v205 , 2503(9)