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Chemistry Help? 5 Questions 10 POINTS?

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  • Chemistry Help? 5 Questions 10 POINTS?


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Answer #1 | 20/12 2013 06:11
First ---> Rb Fourth ---> AlCl3
Positive: 75 %
Answer #2 | 20/12 2013 06:21
1)The group 7A has the halogens which are highly electronegative. The electronegativity value difference is low between S and the Halogens. So, S is the element which is least likely form a cation to form an ionic bond. 2)Fe and He are single atomic species.So, they are not the answer. NaCl is an ionic bond between Na+ and Cl-. So, (SO4)2- is the covalent one. 3)Electrostatic force is caused by electric charges and is the force of attraction. It is also called as Ionic bond.The only ionic bond here is CsCl between Cs+ and Cl-. 4) Al has an oxidation number of 3 and Cl has 1. So, the most likely formula unit of the compound is AlCl3. 5)The electrostatic force is between two opposite ions. So,Fr+ and P3- will have electrostatic forces. Hope this helps.... Good bye Regards, Sabbarish Govindarajan
Positive: 69 %

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