None The electronegativity is 2.1 for H and 1.5 for Mg. Based on theseelectronegativities, MgH2 would be expected to A) be ionic and contain H+ ions. B) be ionic and contain H- ions. C) have polar covalent bonds witha partial positive charges on the H atoms. D) have polar covalent bondswith a partial negative charges on the H atoms.

Answered: Image /qna-images/answer/42318abf-b5d5-418e-9bd7-c32c118ab66b.jpg

Answered: The electronegativity is 2.1 for H and…

Introductory Chemistry For Today

8th Edition

ISBN:9781285644561

Author:Seager

Publisher:Seager

Chapter4: Forces Between Particles

Section: Chapter Questions

Problem 4.105E

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Draw Lewis diagrams for the following compounds. In the formula the symbol of the central atom is given first. (Hint: The valence octet may be expanded for the central atom.) (a) PF5 (b) SF4 (c) XeO2F2
Ionic Bonding 1. Show the transfer of electrons with ↓ notation in the reactions between the following pairs of elements to create an ionic compound. Show the elements as atoms, even though they may exist as diatomic or polyatomic species. (a) Ba and F (b) K and I (c) Cs and S (d) Ca and As (e) Li and N (f) Rb and Se (g) Sr and P (h) Al and Br 2. Write Lewis dot structures for atoms and ions of each of the reactants and products in Exercise 1.
answer true or flase. don't need an explanation or solution (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), then the two atoms will not form a covalent bond. (c) A covalent bond formed by sharing two electrons is called a double bond. (d) In the hydrogen molecule (H2), the shared pair of electrons completes the valence shell of each hydrogen. (e) In the molecule CH4 , each hydrogen has an electron configuration like that of helium and carbon has an electron configuration like that of neon. (f) In a polar covalent bond, the more electronegative atom has a partial negative charge (2) and the less electronegative atom has a partial positive charge (1). (g) These bonds are arranged in order of increasing polarity CiH , NiH , OiH. (h) These bonds are arranged in order of increasing polarity HiF , HiCl , HiBr. ( i) A…
Give reasons which is correct. And give reasons why other options are incorrect. Note:- Hand written solutions are strictly prohibited.
Draw the Lewis structure for the ionic compound thatforms from Mg and each atom.(a) F(b) O(c) N
If something has an electronegative difference of 0.3, explain why on one hand it is classified as polar, but on the other it is classified as non polar?
b) Based on the answer in a), categorize CsCl to be either an ionic or covalent compound.
Classify the bond formed between each pair of atoms as covalent, polar covalent, or ionic.(a) Sr and F (b) N and Cl (c) N and O
In a polar covalent bond, A) both atoms in the bond have the same level of electronegativity. B) one atom in the bond must have higher electronegativity than the other atom. C) one atom must be a H atom. D) both atoms in the bond must be metals.
An elemental analysis of a hydrocarbon, which contains only carbon and hydrogen, shows the mass%: element mass% carbon 92.26 hydrogen 7.743 (A) * Determine the empirical formula of the hydrocarbon. (B) The compound has a molar mass of 26.04 g/mol. Determine its molecular formula. (C, Draw the Lewis structure of the molecular compound. Count the total number of sigma bonds and pi bonds each, present in the molecule. (D, What is the hybridization of carbon in the molecule? Explain.
1a) Which of the following statmenst regarding bond polarity is true? and why? a) electrons are shared equally in polar bonds b) Atoms of elements with small differences in electronegativity form ionic bonds c) atoms of elements with small differences in electronegativity form nonpolar covalent bonds d) electrons are shared unequally in nonpolar bonds e) electrons in polar bonds are transferred from one atom to another 1b)Which of the following bonds is least polar and why? a) H--C b)H--O c)H--N d) H--Cl e)H--F
4. Which of the following Lewis structures is INCORRECT? A) B) C) D) 1 H H 4 H N-H ["%" ] " H H :0: H

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