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@X@user.full_name@X@ @GMU: Closed-tube manometers work exactly as barometers except by connecting them to a container its pressure can be measured. Assume you have a closed-ended manometer filled with an oil having a density of 0.7156 g/mL at 20°C rather than mercury (density = 13.546 g/mL at 20°C). What is the pressure if the height of the oil column is 1205.33 cm?

Which of the following is not a characteristic of mollusks?

@X@user.full_name@X@ @GMU: ACS-Determine the cell potential for the reaction below if [Cr3+] = 0.4147M and [Cd2+] = 0.0178M 2Cr3+(aq) + 3Cd(s) → 2Cr(s) + 3Cd2+(aq) E°= -0.340V

Mrs. Freeman experienced a death in her family three years ago. She does not want to get out of bed, get dressed, put on her make-up, or brush her teeth. She is no longer interested in going to work, shopping, or spending time with her family.  What disorder would Mrs. Freeman probably have?

The 1963 Mental Health Center Act placed people with psychological disorders into insane asylums.

@X@user.full_name@X@ @GMU: Using bond energies from the table below, estimate ΔH for the reaction below.CH3F(g) + HF(g) → CH4(g) + F2(g) Bond Energies, kJ/mol Single Bonds   H C N O S F Cl Br I H 432                 C 411 346               N 386 305 167             O 459 358 201 142           S 363 272 — — 286         F 565 485 283 190 284 155       Cl 428 327 313 218 255 249 240     Br 362 285 243 201 217 249 216 190   I 295 213 — 201 — 278 208 175 149   Multiple Bonds C=C 602 C=N 615 C=O 799 CºC 835 CºN 887 CºO 1072 N=N 418 N=O 607 S=O (in SO2) 532 NºN 942 O2 494 S=O (in SO3) 469

@X@user.full_name@X@ @GMU: What must the reaction quotient Q be, if the free energy is -272.167 kJ at 25.0oC?C2H2(g) + 2 H2(g) → C2H6(g) ΔGo = -242.202 kJ.

Gay Lussacs’ Law is expressed:

The outermost whorl of a flower is called the

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