Is it necessary to conserve energy if we are using biofuel ?instead of diesal

Which statement best describes the oxidation numbers of the atoms found in magnesium chloride? a. magnesium has a 2- oxidation number and chlorine has a 1+ oxidation number. b. magnesium has a 2- oxidation number and chlorine has a 2+ oxidation number. c. magnesium has a 2+ oxidation number and chlorine has a 1- oxidation number. d. magnesium has a 1+ oxidation number and chlorine has a 1- oxidation number.

Ionic compounds are made of ions, and yet the overall charge of an ionic compound is neutral. why?

According to the tide table below what time of day will the highest tide occur? (2 pt) the highest tide will occur at