Question

C) The bond length is less than the sum of the two atomic radii. D) Breaking a covalent bond requires energy E) all of the above Answer 24. Draw the structural formula for acetylene, CHa, and state the type of bonds in an acetylene molecule. A) 3 single bonds B) 2 single bonds and I double bond C) 2 single bonds and 1 triple bond D) I single bond and 2 double bonds E) none of the above Answer 25. What is the molecular shape of an ammonia molecule, NH3? A) bent B) linear C) tetrahedral D) trigonal pyramidal E) none of the above Answer 26) Which of the following describes the attraction between two H2O molecules? A) coordinate covalent bond B) hydrogen bond C) nonpolar covalent bond D) polar covalent bond E) none of the above Answer 27) Which type of electromagnetic radiation is composed of the highest energy photons? Has the longest wavelength? Has the highest frequency? Answer 28) Calculate the wavelength of light that has a frequency of 5.00 x 10's Show calculations Answer 29) In the Bohr model, how many photons are emitted when an electron moves directly from the n- 5 to the n 2 orbit? Answer: 30) How many orbitals are in each of the following sublevels? (a) 4s; (b) 2p: (e) 3d; (d) 3f; (e) 2s; (10 4p Answer

Answer 1