Identify the coordinate covalent bond(s) present, if any, in each of the following molecules by listing the two atoms involved in the bond. Name the atom on the left or the bottom in the bond first. a. N=N 0: c. : 0-CI-O-H b. H-O-F: d. :0—Br—0—Ĥ 0:

16. Among N-H, H-H, O-H, C-H. is the least polar bond, and is the most polar bond. A. H-H and 0-H B. N-H and H-H C. H-H and C-H D. 0-H and H-H

Which type of bond results from the sharing of electron(s) between two atoms?   A. Ionic B. Covalent C. Hydrogen D. Electrovalent

TTT One or more positively-charged 1 negatively-charged atoms. A. Ionic bond B. Covalent bond atoms are electrostatically bound to one or more C. Metallic bond D. Hydrogen bond Hydrogen atoms are attached to a very electronegative atom. The hydrogen atom on 2 one molecule is attracted to the electronegative atom on another molecule. A. Ionic bond C. Metallic bond B. Covalent bond D. Hydrogen bond Electrons are not shared. Atoms have gained or lost valence electrons such that they 3 have a full octet of valence electrons. A. Ionic bond B. Covalent bond A. Ionic bond B. Covalent bond C. Metallic bond D. Hydrogen bond Atoms share two or more valence electrons with other atoms such that they have a 4 full octet of valence electrons. C. Metallic bond D. Hydrogen bond 5 The strongest type of chemical bond. A. Ionic bond B. Covalent bond C. Metallic bond D. Hydrogen bond Atoms are so tightly packed together that their valence electrons move freely from 6 atom to atom. A. Ionic bond B.…

Refer to the periodic table. Which pair of elements can combine to form ionic bonds S and Sr a. b. H and N C. H and CI d. Xe and F

1. Which is the formula of the compound formed by barium and phosphorus? a. BaP3b. Ba2P Ba3P2c. Ba3Pd. Ba2P 2. The bond between Br atoms in a Br2 molecule is _______ and is formed by the _________ of two valence electrons. a. covalent ; sharingb. covalent; transferc. ionic ; transferd. ionic ; sharing

1. Which of the following paired atoms 1 point is non-polar? * a. Br-F b. H-CI c. H-F d. H-P 2. Which of the following bonds has the highest polarity? * a. N-H b. C-H c. N-H d. C-O 3. Which of the following bonds has the lowest polarity? * a. N-H b. C-O c. C-H d. O-H 4. Which of the following is the correct decreasing electronegativity values? * a. F, O, N, C b. CI, S, Si, P c. As, Se, Br, F Od. H, Si, P, S 5. Which molecule has an ionic bond? а. Н-F b. Na-F c. F-F d. Cl-F 6. Which best describe the shape and 1 point polarity of CH4? * a. Tetrahedral polar b. Linear non-polar c. Tetrahedral non-polar d. Linear polar 7. Which statement is true about the non-polar molecules? * a. They are symmetric. b. They are asymmetric. c. They have lone pair on the central atom. d. They have charges 8. If a molecule has this symbol -, it means a. Negative b. Neutral C. Positive d. Cancel out 9. If a molecule has this symbol +, it means a. Charge b. Positive c. Negative d. Neutral 10. If a molecule…

4. Which of the following is a covalent molecule ?   a. NaCl b. HF c. MgS d. KCl

1. It is an electrical attraction between the nuciei and valence electrons of an atom and which bind atoms together. 2. A type of bond which results from the transfer of one or more valence electrons from one atom t another. 3. It is a bond in which the electrons are equally shared by bonded atoms. 4. It is a bond in which the bonded atoms have an unequal sharing of electrons. S. It is a measure of the tendency of an atom to attract electrons toward itself. 6. These are forces of attraction that exist between the molecules that comprise matter. 7. These are intermolecular forces of attraction acting on polar molecules. 8. It is a cpecial type of diņale-dipale interaction when a hydrogen atom bonded ta a highly electronegative atom is attracted to an unshared pair of electrons of an electronegative atom of another molecule. 9. These forces result from the constant movement of electrons in molecules, whích consequently creates instantaneous dipoles. I. Write T if the answer is true and F…

To answer the questions, interpret the following Lewis diagram for NHF, . H-N- 1. For the central nitrogen atom: The number of non-bonding electrons The number of bonding electrons The total number of electrons 2. The central nitrogen atom A. obeys the octet rule. B. has more than an octet. C. has less than an octet. I| ||||