1. Consider the following information about four substances: Electrical Conductivity as solid as Substance Melting Point (°C) | || ||| IV 776 -39 -190 1420 liquid Poor Good Poor Poor Good Poor Poor Poor The substance that is most likely an ionic compound is: A) I B) II 2. In the reaction between potassium and sulphur C) III D) IV Solubility in water High Low Low Low A) each potassium atom donates two electrons to a sulphur atom. B) each potassium atom donates one electron to a sulphur atom. C) each sulphur atom donates one electron to a potassium atom. D) the atoms share electrons, although this sharing is unequal.

Thermochemistry can be considered as a branch of thermodynamics that deals with the connections between warmth, work, and various types of energy, formed because of different synthetic and actual cycles. Thermochemistry describes the energy changes that …

The term exergonic is derived from the Greek word in which ‘ergon’ means work and exergonic means ‘work outside’. Exergonic reactions releases work energy. Exergonic reactions are different from exothermic reactions, the one that releases only heat energ…