Để pha chế 500 ml dung dịch NHỎ có pH=2 cần dùng bao nhiêu gam HNO3 ?

oh it is true if thats what you are asking

answer; i believe the correct answer is (solid gold);

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.  

i'm assuming that it's c.) red bank..