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Chemistry, 22.06.2019 19:20
15. which of the following is not human-caused groundwater pollution? a. water in an aquifer dissolves elements such as arsenic and mercury from surrounding rock. b. water in an aquifer is contaminated by leachate that seeps into the ground from a landfill. c. water in an aquifer becomes polluted with chemicals used in hydraulic fracturing, or fracking. d. water in an aquifer absorbs harmful bacteria from the drainage field of a septic tank.
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Chemistry, 23.06.2019 01:30
List and describe the neurological effects of the vocs and other air pollutants,as described by dr.theo colborn
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Chemistry, 23.06.2019 03:00
Analyze the reaction to determine whether the reaction is exothermic or endothermic. explain your reasoning.
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Chemistry, 23.06.2019 13:00
Consider the reaction: 2al(s) + fe2o3(s) → al2o3(s) + 2fe(s) the δhf for fe2o3(s) = -824.3 kj/mole. the δhf for al2o3(s) = -1675.7 kj/mole. finish the equation. δhrxn = [(1)( kj/mole) + (2)( kj/mole)] - [(1)( kj/mole) + (2) ( kj/mole)]
Answers: 1
Which of the following are formats for encoding a sound or piece of information before it can be tra...
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