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tankabanditka [31]
2 years ago
6

Hello please please help me​

Chemistry
1 answer:
olga nikolaevna [1]2 years ago
4 0

Answer:

            Option-A is the correct answer

Explanation:

Lithium belong to group 1 metals. Hence, it can loose one electron to form lithium ion i.e. Li⁺¹ or Li⁺

While, Nitrogen is non-metal and hence has the ability to gain the electron lost by lithium metal. Furthermore, Nitrogen can gain maximum 3 electrons to acheive noble gas configuration. Hence, three Li atoms will loose their electrons and Nitrogen will gain those three electrons to form nitride ion i.e. N³⁻.

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hope this help....

Explanation:

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2 years ago
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What is true of a reaction that has reached equilibrium?
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The correct option is A.

A chemical reaction is said to have reached an equilibrium stage if the rate of reaction of the forward reaction is equal to the rate of reaction of the reverse reaction. Two way arrows are usually used to depict equilibrium reactions. These arrows indicate that the chemical reaction can move both ways. At the equilibrium point the concentrations of both the reactants and the products are equal.

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What is the mole fraction of ethanol in a solution of 3.00 moles of ethanol and 5.00 moles of water?
Rus_ich [418]
If theres a mixture of components we can calculate the mole fraction
mole fraction can be calculated as follows
mole fraction of component = \frac{number of moles of component}{total number of moles of all components }
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mole fraction of ethanol = \frac{3.00 mol}{8.00 mol }
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6 0
3 years ago
8. When rubidium and fluorine combine to produce the compound RbF, che ions
skelet666 [1.2K]

Answer:

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Explanation:

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