How many milliliter of a 0.77 M HCl solution are needed to react completely with 4.2 g of zinc to form zinc(ll) chloride? Answer in units of mL

Astudent reacts 13 moles of iron with 21 moles of oxygen according to the following equation:

Which buffer would be better able to hold a steady ph on the addition of strong acid, buffer 1 or buffer 2? explain. buffer 1: a solution containing 0.10 m nh4cl and 1 m nh3. buffer 2: a solution containing 1 m nh4cl and 0.10 m nh3

Which of the following natural processes is most likely to support the formation of an underwater sinkhole? a pollution buildup from deposited minerals b limestone cave collapsing due to changes in sea level c erosion of large amounts of sand moved by ocean waves d oxidation of rock formed by chemical weathering