Chemistry, 24.07.2019 21:20 kevinbazalar
76. an average adult breathes about 8.50 x 103 l of air per day. the concentration of lead in highly polluted urban air is 7.0 x 10 g of lead per one m' of air. assume that 75% of the lead is present as particles less than 1.0 x 10 m in diameter, and that 50 % of the particles below that size are retained in the lungs. calculate the mass of lead absorbed in this manner in 1 year by an average adult living in this environment
Answers: 1
Chemistry, 22.06.2019 15:30
Using the first volume and temperature reading on the table as v1 and t1, solve for the unknown values in the table below. remember to use the rules of significant figures when entering your numeric response.
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Chemistry, 22.06.2019 16:00
Which of the following is the correct definition of chemical energy? a. energy an object has because of its motion or position b. energy resulting from the flow of charged particles, such as electrons or ions c. energy produced from the splitting of atoms d. energy stored in chemical bonds of molecules
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76. an average adult breathes about 8.50 x 103 l of air per day. the concentration of lead in highly...
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