Chemistry, 20.06.2021 04:30 kawaiiiiiiii4715
7. 2. Nêu hiện tượng, viết PT xảy ra khi: c. cho hh gồm 0,2 mol K và 0,2 mol Al2O3 vào nước dư
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Chemistry, 21.06.2019 16:30
Imagine that you own a property that is exactly 2.2 acres large. you want to sell your property, but your realtor tells you that you cannot sell your land by the acre. in order to sell your land you need to determine the area you own in units of square meters? given that there are 1.6 kilometers in 1 mile and 640 acres in 1 square mile, what is the area of land that you own in square meters square meters?
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Chemistry, 22.06.2019 14:00
What mass of natural gas (ch4) must you burn to emit 276 kj of heat?
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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.
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Chemistry, 22.06.2019 14:00
Anthracite is so hard and pure it is also referred to as a renewable resource metamorphic rock hot bituminous coal dirty fuel
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7. 2. Nêu hiện tượng, viết PT xảy ra khi:
c. cho hh gồm 0,2 mol K và 0,2 mol Al2O3 vào nước dư...
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