During a family car trip, a family travels for 1 hour at 70 miles per hour. Then the family travels for 2 more hours at 55miles per hour. What is the family’s average speed during the trip?

The family's average speed is 60 mph.

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.  

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