PLEASE HELP Directions: Name the covalent compound created.
EXAMPLE- Sr3P2= Tristrontium diphosphide

CH4 =
B2Si =
N2O5 =
CO2 =

Iknow #2 is d. i just need to know why

Plz choose one of the compounds from the table and explain how you know the numbers of atoms in your formula. is it possible for two different compounds to be made from the exact same two elements? why or why not? with a limited number of elements (less than 120 are known), does this mean we also have a small number of compounds or do we have a large number of compounds in this world?

List four observations that indicate that a chemical reaction may be taking place