How do you write a chemical equation knowing only the reactants?

hi theirs a video on yt that examplains that answer to your question i highly recomend you to watch it ...it will help you out allot its by marc seigel

hope this helps♡

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.  

c is the answer because when something is left after something evaporates that shows the chemical change.