Chemistry, 01.12.2021 14:00 diyagawande
25,6g kim loại X (hóa trị II) tác dụng hoàn toàn với HNO3 đặc nóng cho 17,92 lít khí NO2 (đkc). Kim loại X là
Answers: 2
Chemistry, 22.06.2019 10:40
Asolid that forms and separates from a liquid mixture is called
Answers: 2
Chemistry, 22.06.2019 11:50
Which of the following statements about hybrid orbitals is or are true? choose all that apply. choose all that apply. under sp2 hybridization, the large lobes point to the vertices of an equilateral triangle. after an atom undergoes sp hybridization there is one unhybridized p orbital on the atom. the angle between the large lobes of sp3 hybrids is 109.5∘
Answers: 2
Chemistry, 22.06.2019 17:30
In a heat of an engine, if 700 j enters the system, and the piston does 400 j of work what is the final internal (thermal) energy of the system if the initial energy is 1,500 j
Answers: 2
Chemistry, 22.06.2019 18:00
Answer asap need it by wednesday morning carry out the following calculations on ph and ka of from data. i. calculate the ph of 0.02m hcl ii. calculate the ph of 0.036m naoh iii. calculate the ph of 0.36m ca(oh)2 iv. calculate the ph of 0.16m ch3cooh which has ka = 1.74 x 10-5 mol dm-3 v. calculate ka for weak acid ha which has a ph of 3.65 at 0.30m concentration vi. calculate the ka of a solution made by mixing 15.0 cm3 0.2m ha and 60.0 cm3 0.31m a-. [ph= 3.80] vii. calculate the ph of a solution made by mixing 15.0 cm3 0.1m naoh and 35.0 cm3 0.2m hcooh. [ka = 1.82 x 10-4 m]
Answers: 1
25,6g kim loại X (hóa trị II) tác dụng hoàn toàn với HNO3 đặc nóng cho 17,92 lít khí NO2 (đkc). Kim...
Mathematics, 15.12.2021 17:20
English, 15.12.2021 17:20
Physics, 15.12.2021 17:20
English, 15.12.2021 17:20
Mathematics, 15.12.2021 17:20
Biology, 15.12.2021 17:20
Mathematics, 15.12.2021 17:20
Arts, 15.12.2021 17:20
History, 15.12.2021 17:20