Joelle is a manager at a construction company, and she is interested in the chemistry behind the materials they use. she has begun studying the materials used to fill walls. she knows that to keep the temperature inside a room steady the material must be a thermal insulator, and she predicts that materials should not be acidic or else they would dissolve too easily in water. which is most likely a molecule in a wall-filling material?

Answer : Option A) Benzene

Explanation : Benzene is organic in nature and cannot dissolve in water. Benzene also acts as an thermal insulator because it has delocalized electrons which cannot move its electrons to conduct heat and electricity. Therefore, it is used in wall filler to maintain the temperature inside the room.

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.  

the correct option is c.

isotopes refers to different forms of the same element with the same atomic number but different mass number as a result of difference in their neutron numbers. isotopes have different relative atomic mass but share the same chemical properties.