Consider hypothetical element X and Y.  Suppose the enthalpy of formation of the compound XY is -336 kJ/mol, the bond enthalpy for X2 is 414 kJ/mol, and the bond enthalpy of Y2 is 159 kJ/mol.  Estimate the XY bond enthalpy in units of KJ/mol.

Q: What does an octet of electrons consist of?

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Q: What is the octet rule?

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Q: Consider an ionic compound, MX, composed of generic metal M and generic, gaseous halogen X. • The…

A: Heat of formation: M(s) + 1/2X2 (g) ---> MX (s) ΔH°f = -561 kJ/mol Sublimation: M(s) ------>…

Q: Consider the following information. The enthalpy of formation of SrO is Δ?∘f =−592.0 kJ/mol. The…

A: Given that  The enthalpy of formation of SrO is Δ?∘f =−592.0 kJ/mol.   The enthalpy of sublimation…

Q: bond energy in OF2(g).

A:

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Q: Which element does X represent in the Lewis structure X2 if there is a double bond between the atoms

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Q: Define the term Ionic Bonding?

A:

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Q: Consider an ionic compound, MX, composed of generic metal M and generic, gaseous halogen X. • The…

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Q: Explain the role of electrons in chemical bonding and in relation to the octet rule.

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A: Ionic bonding and covalent bonding has many differences.

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Q: How does the ionic bonding model explain the relatively high melting points of ionic compounds?

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Q: I'm not sure how to solve this one.

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A: Given,  The formation of N2 reaction is  2N (g) ---------> N2 (g)

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Q: Consider an ionic compound, MX, composed of generic metal M and generic, gaseous halogen X. • The…

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Q: Which one is an example of a polar covalent bond? O Cl2 O 02 O HI O F2

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Q: 4 Show how each chemical change obeys the octet rule (a) Hydrogen forms H (hydride ion)

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Q: Is this a covalent or ionic compound?

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Q: Complete the table below. Molecules Types of Chemical Bond Structural Formula H,S Сао M9CI

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Q: Determine the lattice energy of MX

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Q: Chlorine and bromine are in the same group in the periodic table. The bond energy of a Cl–Cl bond is…

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Actinides

The elements in which the extra electron tends to enter the 5f-orbitals of (n–2)th main shell are considered 5f-block elements. They are also named actinides. Actinides include 15 elements, from atomic number 89 to 103.