1. Mercury is most often obtained by roasting cinnabar (HgS). How many grams of cinnabar are required to obtain 165 grams of mercury?
HgS + 02—-Hg + SO2

191.4 grams of cinnabar  are required to obtain 165 grams of mercury.

Explanation:

The balanced reaction is:

HgS + O₂ ⇒ Hg + SO₂

By reaction stoichiometry, the following amounts of moles of each compound participate in the reaction:

Being the molar mass of each compound:

the following mass amounts of each compound participate in the reaction:

Then you can apply the following rule of three: if by stoichiometry 200 grams of Hg are formed from 232 grams of HgS , 165 grams of Hg are formed from how many grams of HgS?

mass of HgS= 191.4 grams

191.4 grams of cinnabar  are required to obtain 165 grams of mercury.

we need the questions , i may then you.

the electron configuration that you gave me has 16 electrons ergo it has 16 protons ergo it is the element sulfur.