Find what heat in calories is required to change 52 gg of 0∘C∘C ice to steam at 100∘C∘C. The heat of fusion LfLf for water is 80 cal/gcal/g. The specific heat capacity of water is 1 cal/g⋅∘Ccal/g⋅∘C. The heat of vaporization for water LvLv is 540 cal/gcal/g.

Me i dont know what to do! the table compares the number of electrons in two unknown neutral atoms. comparison of electrons atom number of electrons a 10 d 11 use this information to determine the number of valence electrons in the atoms. which of the following correctly compares the stability of the two atoms? both are unreactive. both are highly reactive. a is unreactive and d is reactive. a is reactive and d is unreactive.

How many mmols of tris-hcl are there in 100 ml of a 100 mm tris-hcl buffer solution at ph 8.1? note that the 100 mm refers to the sum of tris and tris-hcl concentrations?

How many moles are in 43.9 l of oxygen