What is the oxidation state of Hg in Hg2Cl2?
O A. +2
O B. -2
O C. -1
O D. +1

What does the symbol (–hfus) indicate in a phase change?

Athe top of a hill, an athlete on a skateboard has x joules of mechanical energy. how much mechanical energy will she have at the bottom of the hill? ignore the effects of friction.

What two factors can affect the properties of a hydrocarbon? a. the number of its carbon atoms and the number of single bonds b. the number of its carbon atoms and the arrangement of its atoms c. the arrangement of its atoms and the number of its double bonds