a which of these is an odd-electron molecule? O HBr O BrO O HOBг

Based on the concept of formal charge, what is the central atom in (a) HCN (do not include H as a possibility)? b) NOCI (Cl is always a terminal atom)?

hat does it mean to say that a bond is polar? Give two examples of molecules with polar bonds. Indicate in your examples the direction of the polarity.

What molecules are likely to be odd electron molecules?

The shape of a molecule of NH3 is said to be O Tetrahedral O Trigonal Bipyramidal O Bent OLinear

No Plagiarism Please! A chemical reaction produces formaldehyde, with a chemical formula of CH2O. Carbon is in Group 4A, oxygen is in Group 6A, and hydrogen is in Group 1A on the periodic table. In one to two sentences, describe the bonds in a molecule of formaldehyde in terms of valence electrons

anion. Answer the questions in the table below about the shape of the orthotellurate (Teo-) a How many electron groups are around the central tellurium atom? Note: one "electron group" means one lone pair, one single bond, one double bond, or one triple bond. What phrase best describes the arrangement of these electron groups around the central tellurium atom? (You may need to use the scrollbar to see all the choices.) 山 (choose one) X S

Part I In the molecule FCI, which atom is the negative pole? O CI OF

6.) The total number of valence electrons for the molecule NH2OH is ________.

Which statement below is true?- Hint: Consider how properties of a covalent bond are measured. O One mole of hydrogen atoms is more stable than one mole of hydrogen molecules. O The bond energy is the minimum energy required to bring about pairing of the electrons in a covalent bond. O The buildup of electron density between two atoms repels each nuclei, making them less stable. O As the distance between the nuclei decreases when forming a covalent bond, there is a corresponding decrease in the probability of finding both electrons near either nucleus. O The two electrons in a single covalent bond must be paired as required by the Pauli exclusion principle.