Given the following reactions and subsequent ∆h values what is the ∆h for the reaction below?
zn(s) + 1/8s8(s) + 2o2(g) → znso4(s)

given:
zn(s) + 1/8s8(s) → zns(s)
∆h = -183.92kj

2zns(s) + 3o2(g) → 2zno(s) + 2so2(g)
∆h = -927.54kj

2so2(g) + o2(g) → 2so3(g)
∆h = -196.04kj

zno(s) + so3(g) → znso4(s)
∆h = -230.32kj

answers options:
a) 244.01 kj
b) 488.02 kj
c) -488.02 kj
d) -976.03 kj
e) 976.03 kj

What are transitions between a liquid and a solid called? identify which way they are transitioning

The table lists the lattice energies of some compounds. compoundlattice energy (kj/mol)lif            –1,036licl            –853naf            –923kf            –821nacl            –786which statement about crystal lattice energy is  best  supported by the information in the table? the lattice energy increases as cations get smaller, as shown by lif and kf. the lattice energy increases as the cations get larger, as shown by lif and licl. the lattice energy decreases as cations get smaller, as shown by nacl and naf. the lattice energy decreases as the cations get smaller, as shown by naf and kf.

Which statement is true about the model of the electromagnetic spectrum a: it change the frequencies of light. b: it compare wavelengths of light. c: the color of light waves can be changed using the model. d: the intensities of light waves can be decreased using the model.