KOH + H3AsO4 à K3AsO4 + H2O Given the unbalanced equation above, calculate the moles of potassium arsenate produced from the reaction of 0.125 moles of potassium hydroxide with excess of arsenic acid.

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)

The point along a planet's orbit where it is closest to the sun is called the

Water is a highly important natural resource. which of these would be the best method to conserve water? a) drinking bottled water b) monitoring the ph of rivers c) treating and re-using wastewater d) testing nitrate levels in groundwater