What information did you include in your answer?
check all that apply.
o uranium-lead (u-pb) dating
o relative chronology
expected effect of additional similar results
on mass-extinction hypothesis
connection between the use of new
technology and a possible revision in the
mass-extinction hypothesis
identification of the use of the new
technology as a new experimental method

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.