Pls help me ASAP I DONT know what to put. I only have 6 minutes to answer pls help

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

Ais a mountain created from eruptions of lava, ash, rocks, and hot gases.

Which substance is a steroid? cholesterol fatty acid monosaccharide trans fat