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Chemistry, 21.06.2019 16:00, princessroyal
This graph gives information on changes in sea ice extent in the arctic ocean over a 30-year span. the overall trend shows in the ice extent. to address the trend, scientists need to ask themselves, one direct consequence of the trend is that
Answers: 1
Chemistry, 21.06.2019 23:00, fespinoza019
A100-watt light bulb radiates energy at a rate of 100 j/s. (the watt, a unit of power or energy over time, is defined as 1 j/s.) if all of the light emitted has a wavelength of 525 nm , how many photons are emitted per second?
Answers: 1
Chemistry, 23.06.2019 03:40, ElegantEmerald
The following questions a24 - a26 relate to 100 ml of 0.0150 m solution of benzoic acid (c6h3cooh). ka(c6h3cooh) = 6.4 x 10^-5. what is the ph of the solution after the addition of 1 x 10^-3 moles of naoh? you may assume no volume change to the solution upon addition of the naoh.
Answers: 2
Chemistry, 23.06.2019 09:30, noeliaalvarado
Which element below could be and isotope of this atom
Answers: 1
cho 32,69g Zn tác dụng hết với dung dịch H2SO4 loãng trong điều kiện đẳng tích ở 25oC, người ta thấy...
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