Balance the following equations:
1. __H2 + __N2 → __NH3

Explanation:

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Here , Multiply H₂ by 3 on left hand side and H₃ by 2 on right hand side to equalitize hydrogen atoms.

Here , We have 6 hydrogen atoms in both sides. How about Nitrogen atoms? We have 2 Nitrogen atoms in both sides. And yippie !! We got the balanced equation where both the hydrogen and nitrogen atoms are equal.

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answer: option (b) is the correct answer.

explanation:

a covalent bond is formed by sharing of electrons. whereas polarity arises due to difference in electronegativity of two atoms.

therefore, more is the electronegativity of an atom which combines with the titanium, more readily it will induce a partial positive and negative charge.

thus, out of the given options fluorine is most electronegative and has an incomplete octet. therefore, it will readily combine with titanium to share the electrons and complete its octet.