Chemistry, 30.10.2021 14:00, angehtjgdb
Nguyên tử X có tổng số electron ở các phân lớp p là 10.Viết cấu hình e, gọi tên X?Xác định loại nguyên tố? Giải thích?
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Chemistry, 22.06.2019 07:40, sadcase85
22. a flask containing 450 ml of 0.50 m h2so4 was accidentally knocked to the floor. how many grams of nahco, do you need to put on the spill to neutralize the acid according to the following equation: h2so4(aq)+2 nahcos(aq) na, so(aq) +2 h20()+2 co2(g) d) 38 g a) 2.3 g b) 9.5 g c) 19 g
Answers: 1
Chemistry, 22.06.2019 09:00, yogibear5806
Look at the spectrums of a star moving towards earth and a motionless star. which of these is a correct inference that can be draw from the observation of the two spectrums? (2 points) the spectrum of a motionless star is difficult to be viewed separately using oridinary telescopes. the spectrum of a motionless star is identical to the spectrum of a star which moves towards earth. the spectrum of a star shifts towards the red region when the star moves towards earth. the spectrum of a star shifts towards the blue region when the star moves towards earth.
Answers: 2
Chemistry, 22.06.2019 14:30, Playboycxm
Chemistry worksheet - i am not sure what they are asking for exactly?
Answers: 1
Nguyên tử X có tổng số electron ở các phân lớp p là 10.Viết cấu hình e, gọi tên X?Xác định loại nguy...
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