How many atoms are in 3 moles of nitrogen

Needthe meter is the standard unit for: 1) height 2) length 3) weight 4) mass

What is the relation between concentration of reactants and the rate of chemical reaction?

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