Consider the mechanism. Step 1: 2 A − ⇀ ↽ − B + C 2 A ↽ − − ⇀ B + C equilibrium Step 2: B + D ⟶ E B + D ⟶ E slow Overall: 2 A + D ⟶ C + E 2 A + D ⟶ C + E Determine the rate law for the overall reaction, where the overall rate constant is represented as k . k .

  the mississippians were considered to be  horticulturalists, which means they were

Ascientist measures the speed of sound in a monatomic gas to be 449 m/s at 20∘c. what is the molar mass of this gas?

I'm learning about the periodic tables and what each subject's configuration is. for example, hydrogen is 1s^1, but i don't understand how you get that. can someone me understand how to figure out how to figure this out? sorry if the question makes no sense, but it would really a lot if you could me understand! you so much if you can!