Suppose scientists have found three oxide materials that could potentially be used as a cathode to a magnesium or sodium anode in a battery for electronics. Plan an investigation to determine the best battery. What characteristics would you test for?

Which statement about hf is true? it is zero for any compound in its standard state. it is positive when the bonds of the product store more energy than those of the reactants. it is negative when a compound forms from elements in their standard states. it is zero for any element that is in the liquid state.

Identify the lewis base in this balanced equation: fe3+ h2o fe(h2o)63+

Which one of the following bonds would you expect to be the most polar? a) b–h b) n–h c) p–h d) al–h e) c–h