Concept explainers
General Lewis Structures
Determine whether each compound is ionic or molecular and draw an appropriate Lewis structure:
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Chapter 5 Solutions
Chemistry In Focus
- Represent the following molecules by Lewis structures: a. CH4 each H atom is bonded to the C atom b. CO2 each O atom is bonded to the C atom c. H2Se each H atom is bonded to the Se atom d. NH3 the H atom is bonded to the N atomarrow_forwardHow does the bond energy of HCl(g) differ from the standard enthalpy of formation of HCl(g)?arrow_forwardFor each of the following molecular models, write an appropriate Lewis formula.arrow_forward
- Using Lewis Structures to Determine the Correct Chemical Formula for Ionic Compounds Use Lewis structures to determine the correct chemical formula for the compound formed between LiandO.arrow_forwardUse electronegativity values to classify the bond(s) in each compound as nonpolar, polar covalent, or ionic. a. HF b. MgO c. F 2 d. ClF e. H 2O f. NH 3arrow_forwardUse Lewis symbols to determine the formula for the compound that forms between each pair of elements:a. Ca and N b. Mg and I c. Ca and S d. Cs and Farrow_forward
- Use Lewis symbols to determine the formula for the compound that forms between each pair of elements.a. Sr and Se b. Ba and Cl c. Na and S d. Al and Oarrow_forwardIn drawing Lewis structures what does octet rule mean? O a. atoms lose electrons until they have only 8 electrons left O b. atoms are stable if they have 8 p electrons OC. Atoms are the most stable if they have 8 valence electronsarrow_forward1. Which statement about chemical bonds is true? a. It is an electrostatic attraction that holds two atoms together.b. It involves the combination of two nuclei of different atoms.c. It involves the temporary attraction between two or more substances.d. It deals with the physical separation of substances to form another set of substances. 2. Which Lewis electron-dot diagram represents a rubidium atom? a. Rb•b. :Rb•c. Rb:d. •Rb• 3. The bond between Br atoms in a Br2 molecule is _______ and is formed by the _________ of two valence electrons. a. ionic ; sharingb. ionic ; transferc. covalent ; sharingd. covalent; transferarrow_forward
- 2. Write the Lewis dot (electron dot) symbol for each atom. Use the Lewis dot symbol to predict the charge of the ion formed from atom. Write the Lewis dot structure of the ion. You must write both neutral atom and ion! a. Sr b. N C. I d. P e. Liarrow_forward4. It is important to know the geometry of a molecule because the geometry A. affects the physical and chemical properties of the substance B. will give the Lewis structure of the molecule C. will determine whether the molecule is ionic or covalent D. B and C 5. If there are four L4) electron pairs around tbe central atom of a molecule thesearrow_forwardA. Draw the Lewis Dot Structure of the molecule or ion OF2 B. Find the shape of the molecule or ion OF2 C. Draw the Lewis Dot Structure of the molecule or ion CH2F2 D. Find the shape of the molecule or ion CH2F2 E. Draw the Lewis Dot Structure of the molecule or ion PO3^-3 F. Find the shape of the molecule or ion PO3^-3arrow_forward
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