I’m thinking it’s the last one but I’m not sure.

Word equation for k(s)+h2o(l) yield koh(aq) + h2(g)

Who determined the nature of chemical bonds?

If you used the method of initial rates to obtain the order for no2, predict what reaction rates you would measure in the beginning of the reaction for initial concentrations of 0.200 m, 0.100 m, & 0.050 m no2.