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…

Chemistry for Engineering Students

4th Edition

ISBN:9781337398909

Author:Lawrence S. Brown, Tom Holme

Publisher:Lawrence S. Brown, Tom Holme

Chapter7: Chemical Bonding And Molecular Structure

Section: Chapter Questions

Problem 7.105PAE

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4. Draw the Lewis-dot structure for the organic molecule, CH3-O-CH3, below. A. State all the attractive forces acting on this molecule. (Note: attractive force = secondary force = intermolecular force; they all mean the same thing). B. What is the main intermolecular force for this molecule? C. Is this molecule polar or nonpolar? Provide a brief explanation (2-3 sentences) for your answer.
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
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
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 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
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
Chemistry: Bonding 4a. Draw the Lewis structure for CH4, (methane), NH3, (ammonia), and H20 (water). b. Calculate the bond polarity for the C-H bond, N-H bond, and O-H bond. c. Classify these molecules as either polar or nonpolar. If the molecule is polar, label the partial negative and partial positive sides of the molecules you drew above.
11. Hydrogen chloride is a compound. a. Draw a diagram to show how the electrons are arranged in a molecule of hydrogen chloride. Show only the outer electrons. Show hydrogen electrons as (circles) Show chlorine electrons as (x) b. State the name of the type of bonding present in hydrogen chloride._ c. Hydrogen chloride dissolves in water to form an acidic solution (hydrochloric acid). Describe how you would use litmus paper to show that this solution is acidic. d. Which one of the following values is most likely to represent the pH of a dilute solution of hydrochloric acid? Circle the correct answer pH2 pH7 pH10 f. Name the salt formed in this reaction. pH14 e. Complete the following equation for the reaction of hydrochloric acid with magnesium. Mg(s) + HCl(aq) → MgCl₂(aq) + H₂(g)
Do not give handwriting solution.
Can you please help me answer this
please just do part b
In a post-lab question, a student was asked to explain heat curves. This is what they wrote: "A heating curve shows how the temperature of a molecule changes as it is heated. First, it starts as a solid below its melting point. Then, as heat is put in, the bonds start to break at the phase change, and the molecule becomes a liquid. The temperature of the molecule cools slightly at this point. Then, the temperature rises again because the heat going in makes the molecules have greater potential energy (motion). At its boiling point, more bonds break and it turns into a gas. The phase changes are the flat regions of the heating curves because all the heat going in is used to break the bonds." While they have a lot right, there are a number of mistakes. Highlight or copy-and-paste 2 errors, and explain what is wrong/how to fix the errors.

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