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Chemistry, 22.06.2019 00:30
Drive down any three characteristic of modern periodic table
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Chemistry, 22.06.2019 09:20
How have the greenhouse gasses increased from the year 2000 to 2018
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Chemistry, 22.06.2019 10:30
Skills of homo sapiens were found an excavation. the skulls were preserved because the bodies were frozen. so, these fossils are (blank) fossils.the image shows the evolution of skulls beginning 2 to 3 million years ago. based on the image, modern human skulls(blank) ape skulls.
Answers: 1
Chemistry, 22.06.2019 14:00
The content of manganese (mn) in steel was determined spectrophotometrically and with the use of the standard addition method. an unknown sample of mn from a digested steel sample gave an absorbance of 0.185 when analyzed spectrophotometrically. when 5.00 ml of solution containing 95.5 ppm mn was added to 50.0 ml of the unknown steel solution (digested sample), the absorbance was 0.248. calculate the concentration, in parts-per-million (ppm), of mn in the digested steel sample solution.
Answers: 3
Balance Ca + HCI +CaCl2 + H2...
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Chemistry, 11.10.2019 12:50
History, 11.10.2019 12:50
History, 11.10.2019 12:50
History, 11.10.2019 12:50
History, 11.10.2019 12:50
Mathematics, 11.10.2019 12:50