Can anyone answer I wanna make sure of my answer. Complete the table

Identify the electromagnets with poles that are reversed from the electromagnet shown above

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

To calculate percent by mass, use the equation below: calculate the percent by mass of each element. %n = % %h = % %o = %