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Chemistry, 22.06.2019 01:30
(apex) when a cup of water is dropped, as the cup falls, the water in the cup falls out true or false?
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Chemistry, 22.06.2019 02:50
What is the overall order of reaction for rate = k[no]2[o2]
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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
Chemistry, 22.06.2019 14:00
What is the ph of a solution that has a hydrogen ion concentration of 1.0 * 10 -9 m?
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What covalent bond is phosphorus and oxygen...
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