Chemistry, 11.05.2021 22:20, naomi12360
100 POINTS This tree species was preserved as a fossil in the Arizona desert. The species is now extinct. Describe what the environment was like when the tree lived and how it is different now. Then, infer why this type of tree and other living things that lived with it are extinct.
Answers: 2
Chemistry, 22.06.2019 15:10, kolbehoneyman
The ozone molecule o3 has a permanent dipole moment of 1.8Ã10â30 cm. although the molecule is very slightly bent-which is why it has a dipole moment-it can be modeled as a uniform rod of length 2.5Ã10â10 m with the dipole moment perpendicular to the axis of the rod. suppose an ozone molecule is in a 8000 n/c uniform electric field. in equilibrium, the dipole moment is aligned with the electric field. but if the molecule is rotated by a small angle and released, it will oscillate back and forth in simple harmonic motion. what is the frequency f of oscillation?
Answers: 2
Chemistry, 23.06.2019 15:30, kfull6027
The amount of iron in ore can be quantitatively determined by titrating a solution of the unknown with a standard solution of dichromate, cr2o72â. the net ionic equation is 6fe2+(aq)+cr2o72â(aq)+14h+(aq)â6fe3 +(aq)+2cr3+(aq)+7h2o(aq) part a the titration of 25.0 ml of an iron(ii) solution required 18.0 ml of a 0.230 m solution of dichromate to reach the equivalence point. what is the molarity of the iron(ii) solution?
Answers: 1
Chemistry, 23.06.2019 15:30, Akkenson17871
Which answer below correctly identifies the type of change and the explanation when magnesium comes into contact with hydrochloric acid
Answers: 1
100 POINTS
This tree species was preserved as a fossil in the Arizona desert. The species is now ex...
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