A cylindrical glass tube 12.7 cm in length is filled with mercury. The mass of mercury needed to fill the tube is found to be 105.5 g. Calculate the inner diameter of the tube. (The density of mercury = 13.6 g/mL.)

Q: What is the concentration in molarity of the cations that remain in solution?

A: The net ionic reaction is Mg2+(aq) + 2OH-(aq) → Mg(OH)2(s).

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Q: 7. Rotational motion of diatomic molecule (50 words max): (a) Name all seven (7) diatomic molecules…

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A: The given balanced chemical equation is  2 AlCl3 (aq)   +   3 Pb(NO3)2 (aq)     →    2 Al(NO3)2 (aq)…

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Q: A 1.00-mL reaction mixture (pH = 3.00) contains 6.39mM H2O2, 55 M H2O, 0.220mM O2, and 1.00µM…

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Q: How many orbitals in existing atoms can have the designation 5p, 3dz2, 4d, n = 5 and n = 4?

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Q: reaction Ni2+ *(aq) + 6NH,(q) → Ni(NH,), (aa) HBr(aq) + NH₂(aq) → Br (aq) + NH(aq) 2H₂O₂-2H₂O) +…

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Q: O₂NNO

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Matter and Measurement

In the universe, there is matter, energy, and void space. The universe contains energy and void space. The definition of matter can be considered as something which possesses mass and consumes space. Chemistry is that branch of science which deals with the study of matter. Under chemistry, nature, composition, and the changes occurring to matter are discussed.