Carbon forms molecular compounds with some elements from group 16. two of these compounds are carbon dioxide, co2, and carbon disulfide, cs2.

carbon dioxide is a colorless, odorless gas at room temperature. at standard temperature and pressure, co2(s) changes directly to co2(g).

carbon disulfide is formed by a direct reaction of carbon and sulfur. at room temperature, cs2 is a colorless liquid with an offensive odor. carbon disulfide vapors are flammable.

59 identify one physical property and one chemical property of cs2. [1]

The physical property of carbon disulfide is that at room temperature, CS2 is a colorless liquid with an offensive odor. The chemical property of carbon disulfide is that it is formed by a direct reaction of carbon and sulfur.

answer: enthalpy

explanation:

for a exothermic reaction, the energy is released i.e. the energy of the products is lower than the energy of the reactants.

= enthaply

= energy of products

= energy of reactants

as , thus comes out to be negative. negative value of enthalpy shows that the reaction is exothermic.