1. explain what it means when we say a substance is magnetic. (hint: be sure to mention the role of the electrons) 2. discuss the relationship between electric and magnetic fields (hint: be sure to discuss what happens when electric current is applied to a magnetic field.)

The name of the ion, s2-, is: sulfurous ion sulfide ion sulfur ion sulfate ion

If you add 5.00 ml of 0.100 m sodium hydroxide to 50.0 ml of acetate buffer that is 0.100 m in both acetic acid and sodium acetate, what is the ph of the resulting solution? acetic acid: ka = 1.8. x 10-5

Liquid ammonia is produced at high temperatures and under great pressure in a tank by passing a mixture of nitrogen gas and hydrogen gas over an iron catalyst. the reaction is represented by the following equation. n2(g) + 3h2(g) → 2nh3(g) changing all but one experimental condition will affect the amount of ammonia produced. that condition is a) increasing the concentration of both reactants b) changing the temperature within the tank c) decreasing the pressure within the tank. d) increasing only the amount of nitrogen present.