Chemistry, 25.09.2021 14:00, Sushmitarai9416
Một hợp chất có phân tử gồm 1 nguyên tử nguyên tố X liên kết với 2 nguyên tử O và nặng hơn phân tử hiđro 23 lần. Tính nguyên tử khối của X, cho biết tên và kí hiệu hóa học của nguyên tố
Answers: 3
Chemistry, 23.06.2019 07:30, libbymcvay
Which statement explains which thermometer is more appropriate to measure the temperature of a liquid at 43.6 degrees celsius a) thermometer a, because it measures temperature more accurately than thermometer b b) thermometer b, because it measures temperature more accurately than thermometer a c) thermometer a, because it measures temperature more precisely than thermometer b d) thermometer b, because it measures temperature more precisely than thermometer a
Answers: 2
Chemistry, 23.06.2019 10:30, lavorisjonesjr1
How much mass would a mole of hydrogen molecules contain? recall that hydrogen is diatomic. g/mol
Answers: 3
Chemistry, 23.06.2019 10:40, 1r32tgy5hk7
Question 17 hydrogen is manufactured on an industrial scale by this sequence of reactions: +ch4gh2og ⇌ +cog3h2g k1 +cogh2og ⇌ +co2gh2g k2 the net reaction is: +ch4g2h2og ⇌ +co2g4h2g k write an equation that gives the overall equilibrium constant k in terms of the equilibrium constants k1 and k2. if you need to include any physical constants, be sure you use their standard symbols, which you'll find in the aleks calculator.
Answers: 2
Một hợp chất có phân tử gồm 1 nguyên tử nguyên tố X liên kết với 2 nguyên tử O và nặng hơn phân tử h...
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