Calculate the lattice energy of magnesium sulfide from the data given below. mg(s) → mg(g) δh° = 148 kj/mol mg(g) → mg2+(g) + 2e– δh° = 2186 kj/mol s8(s) → 8s(g) δh° = 2232 kj/mol s(g) + 2e– → s2–(g) δh° = 450 kj/mol 8mg(s) + s8(s) → 8mgs(s) δh° = –2744 kj/mol mgs(s)→mg2+(g) + s2–(g) δh°lattice = ?

What is the mass of sodium in 3 moles of sodium chloride

What effect might melting sea ice have for people who live in coastal areas?

Look at the spectrums of a star moving towards earth and a motionless star. which of these is a correct inference that can be draw from the observation of the two spectrums? (2 points) the spectrum of a motionless star is difficult to be viewed separately using oridinary telescopes. the spectrum of a motionless star is identical to the spectrum of a star which moves towards earth. the spectrum of a star shifts towards the red region when the star moves towards earth. the spectrum of a star shifts towards the blue region when the star moves towards earth.