A Level H2 Chemistry 2012 Paper 1 Answers Apr 2026

(a) Write an equation for the reaction between zinc and dilute nitric acid.

\[The reaction between zinc and dilute nitric acid produces hydrogen gas because zinc is more reactive than hydrogen and displaces hydrogen from the acid.\]

(a) Define the term “ionization energy”. a level h2 chemistry 2012 paper 1 answers

(b) Write an equation for the reaction.

\[CO2 has a linear molecular geometry, with a central carbon atom bonded to two oxygen atoms through double bonds. The carbon atom is sp hybridized, with two sp hybrid orbitals forming σ bonds with the oxygen atoms and two unhybridized p orbitals forming π bonds.\] (a) Write an equation for the reaction between

(b) Explain why CO2 is a non-polar molecule.

\[Ethalal can be prepared by oxidizing ethanol using a mild oxidizing agent, such as potassium dichromate(VI) in acidic conditions.\] \[CO2 has a linear molecular geometry, with a

(a) Describe the bonding in CO2.