Concept explainers
(a)
Interpretation:
The more polar bond has to be indicated using partial charge of
Concept Introduction:
The partial negative
(b)
Interpretation:
The more polar bond has to be indicated using partial charge of
Concept Introduction:
Refer part (a).
(c)
Interpretation:
The more polar bond has to be indicated using partial charge of
Concept Introduction:
Refer part (a).
(d)
Interpretation:
The more polar bond has to be indicated using partial charge of
Concept Introduction:
Refer part (a).
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OWLv2 for Moore/Stanitski's Chemistry: The Molecular Science, 5th Edition, [Instant Access], 1 term (6 months)
- - Classify each compound as ionic or molecular. If it is ionic, determine whether the metal forms only one type of ion or more than one type of ion. (a) CoCl2 (b) CF4 (c) BaSO4 (d) NOarrow_forward3. How many valence electrons are in a C atom? an Cl atom? (a) Write the full Lewis structure for the CH2C2 molecule. Show all lone pairs. Pert (b) Write the geometric structure for the CH2CI2 molecule and name the geometry. (c) Determine if the CH2CI2 molecule has polar or nonpolar bonds using the following electronegativity: C = 2.5, H = 2.1, CI = 3.0. Re-draw the geometric structure below, but this time include partial charges and dipole arrows for any polar bonds present. Justify your assignments for polar or nonpolar bonds.arrow_forwardOH (2) H.arrow_forward
- Based on Linus Pauling's electronegativity scale, would H2S be considered a polar molecule? Pick the best answer. (a) No. It would technically be considered a non-polar molecule. (b) No. Even though it contains polar bonds they are symmetrical and therefore H2S is non-polar. (c) No. The electronegativity difference between H and S is so great that it would be considered an ionic compound. (d) H2S violates the octet rule and therefore would not even existarrow_forwardAnswer true or false. (a) The name of a binary ionic compound consists of the name of the positive ion followed by the name of the negative ion. (b) In naming binary ionic compounds, it is necessary to state the number of each ion present in the compound. (c) The formula of aluminum oxide is Al2 O3 . (d) Both copper(II) oxide and cupric oxide are acceptable names for CuO. (e) The systematic name for Fe2 O3 is iron(II) oxide. (f) The systematic name for FeCO3 is iron carbonate. (g) The systematic name for NaH2PO4 is sodium di- hydrogen phosphate. (h) The systematic name for K2HPO4 is dipotassium hydrogen phosphate. (i) The systematic name for Na2O is sodium oxide. (j) The systematic name for PCl3 is potassium chloride. (k) The formula of ammonium carbonate is NH4CO3. 39. (a) A covalent bond is formed between two atoms whose difference in electronegativity is less than 1.9. (b) If the difference in electronegativity between two atoms is zero (they have identical electronegativ- ities),…arrow_forwardThe compound SiO2 does not exist as a discrete molecule while CO2 does. This is because ________. (A) CO2 is a molecular compound, whereas SiO2 is an ionic compound. (B) The SiO2 is solid while CO2 is a gas. (C) The sigma bond between Si and O atoms is very weak. (D) The Si atom does not form a stable pi-bond with the O atom.arrow_forward
- Which type of chemical formula/model provides the most information about a given substance? (a) All of these provide the same amount of information; they just depict the substances in different ways (b) Structural Formula (i.e. Lewis Structure) (c) Empirical Formula (d) Ball-and-stick model (e) Molecular Formulaarrow_forwardAnswer true or false. (a) The octet rule refers to the chemical bonding patterns of the first eight elements of the Periodic Table. (b) The octet rule refers to the tendency of certain elements to react in such a way that they achieve an outer shell of eight valence electrons. (c) In gaining electrons, an atom becomes a positively charged ion called a cation. (d) When an atom forms an ion, only the number of valence electrons changes; the number of protons and neutrons in the nucleus does not change. (e) In forming ions, Group 2A elements typically lose two electrons to become cations with a charge of 12. (f) In forming an ion, a sodium atom (1s22s22p63s1) completes its valence shell by adding one electron to fill its 3s shell (1s22s22p63s2). (g) The elements of Group 6A typically react by ac- cepting two electrons to become anions with a charge of 22. (h) With the exception of hydrogen, the octet rule applies to all elements in periods 1, 2, and 3. (i) Atoms and the ions derived from…arrow_forwardConsider four chemical bonds: Ca-S, Mg-F, Cl-Cl, and P-N (i) Calculate the electronegativity difference (EN): Use the electronegativity table distributed in the class for calculations. (ii) Determine the bond type (ionic, polar covalent or nonpolar covalent) (iii) Rank the chemical bond in order of increasing polarity from lowest to highest. chemical bond the electronegativity difference (EN) the bond type Ca-S Mg-F Cl-Cl P-N Rank of the bonds in order of polarity: (least) ______ < ______ < _______ < _________(most)arrow_forward
- Determine whether the following atoms will form an ionic compound or a molecular compound, and give the formula of the compound. (a) 2 bromine (b) carbon and oxygenarrow_forwardAn element X reacts with oxygen to form XO2 and with chlorineto form XCl4. XO2 is a white solid that melts at high temperatures(above 1000 °C). Under usual conditions, XCl4 is acolorless liquid with a boiling point of 58 °C. (a) XCl4 reactswith water to form XO2 and another product. What is thelikely identity of the other product? (b) Do you think thatelement X is a metal, nonmetal, or metalloid?arrow_forwardAn element X reacts with oxygen to form XO2 and with chlorineto form XCl4. XO2 is a white solid that melts at high temperatures(above 1000 °C). Under usual conditions, XCl4 is acolorless liquid with a boiling point of 58 °C. (a) XCl4 reactswith water to form XO2 and another product. What is thelikely identity of the other product? (b) Do you think thatelement X is a metal, nonmetal, or metalloid? (c) By using asourcebook such as the CRC Handbook of Chemistry and Physics,try to determine the identity of element X.arrow_forward
- Introduction to General, Organic and BiochemistryChemistryISBN:9781285869759Author:Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar TorresPublisher:Cengage Learning