Give the expected ground-state electron configurations for atoms with the following atomic numbers: Z = 56
Z = 28
Z = 47

How many electrons does silver have to give up in order to achieve a sido noble gas electron configuration?

Explain what happens at the saturation point when adding salt to water at room temperature.

Given the following at 25c calculate delta hf for hcn (g) at 25c. 2nh3 (g) +3o2 (g) + 2ch4 (g) > 2hcn (g) + 6h2o (g) delta h rxn= -870.8 kj. delta hf=-80.3 kj/mol for nh3 (g), -74.6 kj/mol for ch4, and -241.8 kj/mol for h2o (g)