What would be the correct keq expression for the following reaction that has reached dynamic equilibrium?
co(g) + 3h2(g) two arrows stacked on top of each other. the top arrow points to the right. the bottom arrow points to the left. ch4(g) + h2o(g)

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’s the percent by mass of carbon in c10h14n2

How many liters of hydrogen gas will be produced at stp from the reaction of 7.179×10^23 atoms of magnesium with 54.219g of phosphoric acid (h3po4) the equation is 3mg + 2h3(> mg(po4)2+3h2