Which gaseous molecules (choose one species) effuse slowest? A. SO2(g) B. Ar(g) C. NO(g) D. Ne(g) E. CO2(g) Show explanation please.
Which gaseous molecules (choose one species) effuse slowest? A. SO2(g) B. Ar(g) C. NO(g) D. Ne(g)...
20. Choose the diamagnetie species from below. a. Sn? b. As c. Br d. Cr e. None of the above is diamagnetic 21. How many valence electrons do the noble gases possess? a. 8 b. 1 d. 6 e 2 Identify the isoelectronic elements. a. Cl, F, Br, 1, At b. P3-, S-, Cl-, K, Ca²+ C. Ne, Ar, Kr, Xe, He d. N3, S2-, Br, Cst, Sr2+ e. Zn2+, Co2+, CuCr, Cd? 23. Choose the best Lewis structure for...
Which gas has the greatest kinetic energy at STP? a. He b. Ne c. Ar d. All have the same kinetic energy at STP. Please show work/explain how answer was found. Thank you!
at the same temperature which of the following gases contains molecules with the slowest average velocity? A) NO2 B) CO C) CO2 D) NO E) the average velocity is the same
What species are most relevant to Viagra action? A) CO2 B) O2 C) NO D) SO2
with steps and neat, please. Equal numbers of moles of He(g), Ar(g), and Ne(g) are placed in a glass vessel at room temperature. If the vessel has a pinhole-sized leak, which of the following will be true regarding the relative values of the partial pressures of the gases remaining in the vessel after some of the gas mixture has effused? A. P(He) > P(Ne) > P(Ar) B. P(Ar)> P(Ne) > P(He) C. P(Ne)> P(Ar)> P(He) D. PAr)> P(He) > P(Ne)...
30. Which of the following molecules is polar? A) CC14 B) NH3 C) 503 D) CO2 E) BeF2 31. Rank the following elements in order of increasing atomic size: Ge, Rb, Ne, S A) Ge<RbNe <S B) Rb <S<Ne <Ge CS<Ne < Ge<Rb D) Ne<S<Ge<Rb E) Rb <Ge<Ne<S 32. Select the pair that has the larger atom or ion listed first. A) P, P3- B) Na+, Na C) S, 52- D) Mg2+, Mg E) Br, Kr 33. Which element has...
Which species requires the drawing of resonance structures? a. SO2 b. CCl4 c. NF3 d. CH2O
Vessel A contains CO(g) at 0°C and 1 atm. Vessel B contains SO2(g) at 20°C and 0.5 atm. The two vessels have the same volume. a) Which vessel contains more molecules? b) Which contains more mass? c) In which vessel is the average kinetic energy of molecules higher? d) In which vessel is the rms speed of molecules higher? (Could you write it out neatly please)
The density of an unknown element in the gaseous state is 1.60 g at 300 K and 1 atm. Which of the following could be the element? a. He b. Ne c. Ar d.O2 e. Cl2
.The density of a gas at 1.00 atm and 25.0°C is 1.798 g/L, which of the following is most likely the gas? a) CO2 b) NO c) SO2 e) Ar d) O2