Chemistry, 30.07.2021 09:50 kyrabrown33
Hòa tan 10g CaCO3 vào 114,1g dung dịch HCl 8%. Tính nồng độ phần trăm các chất thu được sau phản ứng
Answers: 3
Chemistry, 21.06.2019 19:30
The molecular formula for caffeine is cshion402. which of the following elements is not found in caffeine?
Answers: 1
Chemistry, 22.06.2019 07:20
Why does his teacher ask him to balance the equation by including the correct coefficient
Answers: 1
Chemistry, 22.06.2019 17:10
Some liquids can be distilled, but only at temperatures that are so high that it is impractical, or so high the compound decomposes. explain why distillation such compounds at significantly less than atmospheric pressure (some degree of vacuum) would solve this problem.
Answers: 2
Chemistry, 22.06.2019 19:20
Consider hydrogen in an excited state n = 5n=5 that emits photons to reach the ground state. there are various possible transitions other than straight to the ground state that can occur; for example, it can drop to the n = 3n=3 state followed by the n = 3n=3 to the ground state transition. which of the possible transitions will result in the emission of a photon in the visible region?
Answers: 3
Hòa tan 10g CaCO3 vào 114,1g dung dịch HCl 8%. Tính nồng độ phần trăm các chất thu được sau phản ứng...
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