How many moles are represented by 118 g of cobalt? cobalt has an atomic mass of 58.93 amu.

Harvey mixes two liquids. which observation of the new mixture most likely indicates a precipitate is forming?

1. list three scientific reasons cockroaches may fly.

The table compares the number of electrons in two unknown neutral atoms. comparison of electrons atom number of electrons a 10 d 11 use this information to determine the number of valence electrons in the atoms. which of the following correctly compares the stability of the two atoms? both are unreactive. both are highly reactive. a is unreactive and d is reactive. a is reactive and d is unreactive.