Two reactants combine to form a single product, so combination (also called synthesis). No oxidation state change, so not redox. Decomposition is opposite.
Explanation:
NH₄Cl is from HCl (strong) and NH₄OH (weak). Its aqueous solution is acidic due to hydrolysis of NH₄⁺. NaCl is neutral (strong-strong). CH₃COONa basic (weak-strong).
Explanation:
Neutralization is a chemical reaction in which an acid and a base react quantitatively with each other to form a salt and water. For example, HCl + NaOH → NaCl + H₂O. It is generally an exothermic process, and the resulting solution has a pH closer to 7.
Explanation:
Graphite conducts electricity due to delocalized electrons within its layers. Diamond is an insulator. Buckminsterfullerene (C₆₀) is a semiconductor but not as good a conductor as graphite in bulk; fullerene solids can be doped to become conductors. Charcoal is a poor conductor. Graphite electrodes are used in batteries and electrolysis.
No comments yet. Be the first to start the discussion!