Michael is studying the factors that affect reactivity of metals. He wants to test the effect that different concentrations of an acid will have on the reaction of a metal with acid. As he sets up and completes his experiment, which of the following experimental designs would be most likely to help him answer his question? ​

Find the protons, electrons and neutrons for strontium with a mass of 83

Which supports the idea that birds and butterflies both have wings but they do not have a common ancestor with wings? a. the wings are analogous structures that evolved differently and do not have a similar internal structure. b. the wings are homologous structures that evolved differently and do not have a similar internal structure. c. wings of birds are vestigial structures, but the wing structures of bats are not vestigial. d. wings of bats are vestigial structures, but the wing structures of birds are not vestigial

What is the overall order of reaction for rate = k[no]2[o2]