iPad 9:54 AM 100% QUESTION 1 0.5 points Save Answer Based on their position on t

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iPad 9:54 AM 100% QUESTION 1 0.5 points Save Answer Based on their position on the periodic table, which bond do you expect to be the most polar? AI-P ials (PLE) Be-Cl Grid OP -CI Portfolios ard QUESTION 2 0.5 points Save Answer Each scenario describes the properties of a substance. Based on the properties determine if the substance has ionic, covalent, or metallic bonding. ernative Substance A: Non-acid, non-base Melts at S20 °C. Decomposes before it can Acid or base covalent boil. Does not substance Conducts er covalent substance er B. Metallic substance er ·lonic substance electricity in the solid or liquid state or in aqueous solution view er 3 Substance B: Melts at 157 OC. Condicts electricity as a solid and as a er 4 er view Click Save and Submit to save and submit. Click Save All Answers to save all answers le 6 le 8 Save All Answers Save and Submit

Explanation / Answer

1) Be-Cl bond will be most polar

higher the difference in electronegativities more the polarity in bond

Al :1.61,

S : 2.58,

P : 2.19,

Cl : 3.16,

Be : 1.57

(i) Al-P : Electronegativity difference = 2.19 - 1.61 = 0.58

(ii)Al -S : Electronegativity difference = 2.58 - 1.61 = 0.97

(iii) Be-Cl : Electronegativity difference = 3.16 - 1.57 = 1.59

(iv) P-Cl: Electronegativity difference = 3.16 - 2.19 = 0.97

2) (a) Substance A: non-acid, non -base covalent substance

(b) Substance B: As it is conducting in solid or liquid state: Metallic subtance

(c) Subtance C:Does not conduct electricity as a liquid but does when dissolved in water = Acid or base covalent substance

(d) Subtance D: Does conduct electricity as a liquid and when dissolved in water = Ionic Substance.

(d)

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