Atemperature change in a reaction indicates a. physical change b. no change c. a chemical change d. a positive change

Which compound contains both ionic and covalent bonds? a) hbr b)cbr4 c)nabr d) naoh

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

How many moles of al3+ ions are in 1.25 moles of al2o3