Which layer of the atmosphere is the top layer of the thermosphere

Calculate the molarity of the solution. 6.02 x 1022 molecules of hci (molecular weight = 36.5 g/mole) in 2.0 liters of water m

Write the chemical symbols for three different atoms or atomic cations with 27 electrons. asap!

Water's surface tension and heat storage capacity are accounted for by its a) orbitals b) weight c) hydrogen bonds d) mass e) size