Calculate the half-life in years for decomposition of H2CO3 at room temperature. Show your working. You may use the fact that 1 year is approximately 31,500,000 seconds in your calculation. Would the entropy change for the reaction Hg(l) + Cl2(g) → HgCl2(s)

The diagram shows the structures of horse and cat forelimbs. what does the diagram suggest about the evolutionary relationship between these two mammals? a. they have homologous structures, indicating a common ancestor. b. they have analogous structures, indicating a common ancestor. c. they have homologous structures, indicating that they do not have a common ancestor. d. they have analogous structures, indicating that they do not have a common ancestor.

Is 9 correct? and can someone me with 10? it’s due tomorrow, you

A40 kilogram skier starts at the top of a 12 meter high slope. at the bottom, she is travelling 10 meters per second. how much energy does she lose to friction