1. A piece of metal with a mass of 4.68 g and a specific heat of 0.90 J/gºC is heated and its temperature increases by 182 C How much heat is absorbed by the metal?

2. The temperature of a 50.8 g sample of water has a temperature increase from 0.0C to
46.6C. How much heat did it absorb if the specific heat of water is 4.18 J/g°C.

HEL It’s due today

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.  

chemical digestion occurs in the stomach were hcl and pepsin forms chyme, the mouth in which salivary amylase breaks down starch to form bolus, and the small intestine specifically the duodenum.

it's all four options.