People in urban areas often have advantages over rural dwellers. Which of these is is an advantage of city dwelling versus rural dwelling?
A)
Exposure to fewer sources of noise pollution
B)
Lower chances of exposure to hazardous wastes
Better access to health care and other services
D)
Lower levels of asthma and other respiratory problems

How do you know when a chemical reaction has occurred

Chlorine and water react to form hydrogen chloride and oxygen, like this: 2cl2 (g) + 2h2o (g) → 4hcl (g) + o2 (g) also, a chemist finds that at a certain temperature the equilibrium mixture of chlorine, water, hydrogen chloride, and oxygen has the following composition: compound concentration at equilibrium cl2 0.55m h2o 0.57m hcl 0.53m o2 0.34m calculate the value of the equilibrium constant kc for this reaction. round your answer to 2 significant digits.

Which one of the following bonds would you expect to be the most polar? a) b–h b) n–h c) p–h d) al–h e) c–h