What type of chemical hazard results from incomplete combustion of petroleum-based chemicals and other organic substances?
a. polycyclic aromatic hydrocarbons
b. polychlorinated biphenyls
c. persistent organic pollutants
d. volatile organic compounds
e. none of these is correct.

You 4. you have been swimming in your neighbor’s pool for an hour. the relative humidity of the air is 30 percent. will you feel warm or cool when you step out of the pool? explain your answer.

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

Solutions of sodium carbonate and silver nitrate react to form solid silver carbonate and a solution of sodium nitrate. a solution containing 3.50 g of sodium carbonate is mixed with one containing 5.00 g of silver nitrate. how many grams of sodium carbonate, silver nitrate, silver carbonate, and sodium nitrate are present after the reaction is complete?