(WCSU24) Shown below are five curves that represent the dist…

(WCSU24) Shown below are five curves that represent the distribution of molecular speeds of five different gases at the same temperature and pressure, each in a separate 10 L container. The gases are H2, CH4, He, SF6, and N2. Complete the statements so that they are true.   a. The gas represented by has the largest fraction of molecules traveling at the most probable speed. b. Curve corresponds to N2. c.  All of the gases represented have the same . d.  Gas has the greatest density. e.  Increasing the speed of the molecules will the pressure.

(WCSU24) Arrange the following in order of increasing…….

(WCSU24) Arrange the following in order of increasing….         smallest/lowest –> largest/highest Example:  Radius Cs Rb Li Li             Rb           Cs Atomic radius P Mg F < < Bond strength C=C C-C C≡C < < Melting point NaCl CH4 H2O < < Ionization energy Cl P Na < < Bond angle HCN NH3 H2O < < Bond polarity C-F C-N C-H < < Energy 3s 2s 3p < < Energy UV light X-rays micro waves < <  

(WCSU24) Select the appropriate word that makes each sentenc…

(WCSU24) Select the appropriate word that makes each sentence true. a. Melting is . b. Intermolecular forces occur molecules.  c. When intermolecular interactions are broken, energy is .   d. The energy absorbed when liquid water vaporizes is than the energy absorbed when ice (solid water) melts.  e.   A temperature decrease is observed when NH4Cl is dissolved in water.  We can conclude that the total intermolecular interactions formed between solute and solvent are than those broken.  f. As temperature of a substance increases, kinetic energy . g. The