PLs help ASAP, pls show all work and steps. 18. Answer the questions below.a. Draw the structure for SiF4b. Using the electronegativity values, calculate the difference.c. On the structure, identify the dipole(s).d. Is the overall molecule polar or nonpolar? Explain.e. Identify the intermolecular forces. Do you expect this molecule to have a lowboiling point or a high boiling point? Explain.

Approach to solving the question:use VBT for the structure. Calculate the valence electrons of Si…

Answered: 18. Answer the questions below. a. Draw…

Introductory Chemistry: A Foundation

9th Edition

ISBN:9781337399425

Author:Steven S. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Donald J. DeCoste

Chapter15: Solutions

Section: Chapter Questions

Problem 20CR

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The interaction between Ca and Cl is a. ionic in nature b. nonpolar covalent in nature c. polar covalent in nature d. metallic in nature e. no association
Answer all of the question above and dont left even one question behind.
1. Which is an example of a non-polar molecule that contains polar covalent bonds? A. H2O B. NH3 C. N2 D. CBr4 2. Which of the following molecules dissolves in water? A. C6H6 B. CBr4 C. CH3OH D. CCl4 3. SO3 molecules are ____. A. nonpolar B. either C. polar D. None of them 4. A polar molecule is one in which there is a separation of charge caused by ___. A. an uneven number of electron pairs B. an average distribution of electrons C. a non-uniform electron distribution D. a complete loss of electrons 5. Which of the following molecule is not polar? A. HF B. water (H2O) C. ammonia (NH3) D. H2
1. Which of the following words describe BEST the statements given below? C. Heat Capacity D. Polar A. Adhesion B. Cohesion I. The reason the molecular structure of water has a charge. II. Amount of energy needed to change the temperature of a substance. III. Molecular attraction in which a water sticks to other, unlike substances. IV. Molecular attraction in which water sticks to itself. Answer these questions: 2. Why does a water molecule have polarity? 3. What are the physical and chemical properties of water that make it so unique and necessary for living things? 4. Why is water called the universal solvent? 5. Colligative Properties: Discuss the phase diagram below
Answer the questions below. Draw the structure for ClF5 (1) Using the electronegativity values, calculate the difference. (1) On the structure, identify the dipole(s). (1) Is the overall molecule polar or nonpolar? Explain. (2) Identify the intermolecular forces. Do you expect this molecule to have a low boiling point or a high boiling point? Explain. (3)
Please help
Which of the following BEST explains the relatively low melting point of covalent molecular substances compared to other solids? Select one: a.The “sea” of electrons between the atoms creates relatively weak bonding. b.The differing electronegativities of atoms involved create uneven electron density within the molecule. c.Covalent molecular materials rely on weak electrostatic forces holding the ions together. d.The intermolecular forces between the molecules are weaker compared those exhibited by ionic or metallic solids.
Please answer the following questions in your own words. Define the following terms: Ion – Valence electrons – Atomic number – Electronegativity – Octet rule – Explain the difference between a covalent, ionic, and hydrogen bond. Compare and contrast polar and nonpolar covalent bonding. Identify 1 similarity and 1 difference. Answer the following questions about water (H20): Which type of chemical bond holds the hydrogen and oxygen atoms together in a single water molecule? Which type of chemical bond holds different water molecules together in a water droplet? Is water an example of a polar or nonpolar molecule? Explain. Which atom in a water molecule has a greater electronegativity? Will water dissolve nonpolar molecules? Explain. Explain how the following properties of water are important to living organisms: Water has a high heat of vaporization Water is a good solvent Ice is less dense than liquid water
6,7,8,9,10 Letters ONLY
Which among these statements is incorrect? a. Water is made up of elements hydrogen and oxygen. b. In H2O, 4 of the six outer-shell electrons of Oxygen are used in bonding with Hydrogen. c. Water is considered a polar molecule due to its bent structure. d. None of the above.
Draw the Lewis and VSEPR structure for PHF2 (P is the only central atom) A. Give the electron geometry. [Select] B. Give the bond angle. [Select] C. Give the molecular geometry. [Select] D. Does it have polar covalent bonds or nonpolar covalent bonds? [Select] E. Is the molecule polar or nonpolar? [Select] F. List all the intermolecular forces present. [Select] G. Give the strongest intermolecular force present. [Select] molecule for forces ✓forces bonds
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