For which of the following is heat energy released?
evaporation
melting
condensing
boiling
i know its either a or d

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

Name the element in group 17, period 2. (periodic table)

What is the value of keq for the reaction expressed in scientific notation?