What is the formula name for the following compounds: 1. oh-, 2. h2o, 3. lif

i need with this because i just don't know how to do this
mind you this is my last 10 points so be sure you know it

Using the periodic table, determine which material is most likely a good conductor

Use the drop-down menus to match each part of the scenario to the correct scientific practice. akira records the speed of a reaction without a catalyst and then with a catalyst. akira creates a reaction without a catalyst and repeats the reaction with a catalyst. akira turns in a written lab report to his science teacher. akira wonders, "will adding a catalyst speed up this chemical reaction? " akira writes in his notes that adding a catalyst sped up the chemical reaction because the catalyst lowers the activation energy needed to get the reaction started.

Mercury had an average distance to the sun of 0.39 au explane how to calculate the orbital period of mercury and then calculated it