What is the mass in grams of 9.45*10^24 molecules of methanol (ch3oh)?

100mg magnesium reacts with 20ml of 1.0m hcl

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.

In 2002, the rare earth elements mine in mountain pass, california was closed because