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.

Ionic compounds are made of ions, and yet the overall charge of an ionic compound is neutral. why?

Explain which group an element with the electron configuration 1s2 2s2 2p6 3s2 3p6 3d1 4s2 belongs to.

An alkaline battery produces electrical energy according to the following equation. zn(s) + 2 mno2(s) + h2o(l) zn(oh)2(s) + mn2o3(s) (a) determine the limiting reactant if 17.5 g zn and 31.0 g mno2 are used. (type your answer using the format ch4 for ch4.) (b) determine the mass of zn(oh)2 produced. _ g