Consider the resonance structures of formate. select the true statements about the resonance structures. a. each oxygen atom has a double bond 50% of the time. b. the actual structure of formate is an average of the two resonance forms. c. each carbon–oxygen bond is somewhere between a single and double bond. d. the actual structure of formate switches back and forth between the two resonance forms.

3.09 lab: reaction of metals 1 which combinations of substances resulted in a chemical change? for each metal that participated in a chemical change, write the type of metal it is, based on your examination of the periodic table. were there any metallic compounds that did not react with either the acid or the base? write the type of metal, based on your examination of the periodic table. make a general statement about the reactivity of the metals in this experiment.