Chemistry, 17.11.2019 15:31, janinecastillo01
Lead is found in earth’s crust in several different lead ores. suppose a certain rock is composed of 38.0% pbs (galena), 25.0% pbco3 (cerussite), and 17.4% pbso4 (anglesite). the remainder of the rock is composed of substances that don’t contain lead. how much of this rock (in kg) must be processed to obtain 5.8 metric tons of lead? (a metric ton is 1000 kg.)
express your answer using two significant figures.
Answers: 3
Chemistry, 22.06.2019 19:30, amandamiro05
Helium decays to form lithium. which equation correctly describes this decay?
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Chemistry, 22.06.2019 22:20, trockout4868
How do cfcs cause ozone depletion? how do cfcs cause ozone depletion? ultraviolet radiation breaks down cfcs, molecules containing chlorine. chlorine then breaks one oxygen atom away from ozone, leaving behind a paired oxygen molecule. ultraviolet radiation breaks down cfcs, molecules containing chlorine. chlorine then breaks two oxygen atoms away from ozone, leaving behind a paired oxygen molecule. ultraviolet radiation creates cfcs, molecules containing chlorine. chlorine then breaks two oxygen atoms away from ozone, leaving behind a paired oxygen molecule. ultraviolet radiation creates cfcs, molecules containing chlorine. chlorine then breaks one oxygen atom away from ozone, leaving behind a paired oxygen molecule.
Answers: 2
Lead is found in earth’s crust in several different lead ores. suppose a certain rock is composed of...
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