Final answer:
The reaction 2 Cl₂ (g) + Si(s) → SiCl₄(l) is a proper formation reaction because it combines elemental chlorine and silicon to produce one mole of silicon tetrachloride, aligning with the characteristics of standard formation reactions.
Step-by-step explanation:
The chemical reaction presented is 2 Cl₂ (g) + Si(s) → SiCl₄(l). This reaction involves the combination of elemental chlorine gas and silicon in its solid form to produce silicon tetrachloride as a liquid.
In the context of proper formation reactions, this reaction can be considered a formation reaction because it forms a single compound, silicon tetrachloride, from its basic elements in their standard states.
A standard formation reaction typically involves the production of one mole of a compound from its constituent elements in their most stable form at standard conditions of temperature and pressure.
where two or more elements or compounds combine to form a new compound.
The reaction obeys the law of conservation of mass, and the coefficients in front of each substance in the reaction equation indicate the ratio in which the reactants combine.