A sample gas contains 0.1400 mol of C2H4(g) and 0.1400 mol of Br2(g) and occupies a volume of 17.3 L. The following reaction takes place: C2H4(g)+Br2 (g) = > CH2BrCH2Br(g)

calculate the volume of the sample after the reaction takes place, assuming that the temperature and the pressure remain constant.

0.09 moles of sodium sulfate in 12 ml of solution

Me i dont know what to do! 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.

How many molecules are in 6.0 moles of methane