Answer:
B. hydrogen is oxidized
Concept(s):
Hydrogen: A colorless, odorless, flammable gas that combines chemically with oxygen to form water: the lightest of the known elements. Symbol: H; atomic weight: 1.00797; atomic number: 1; density: 0.0899 g/l at 0°C and 760 mm pressure.
Iodine: A nonmetallic halogen element occurring at ordinary temperatures as a grayish-black crystalline solid that sublimes to a dense violet vapor when heater: used in medicine as an antiseptic. Symbol: l; atomic weight: 126.904; atomic number: 53; specific gravity: (solid) 4.93 at 20°C.
Oxidation: The deposit that forms on the surface of a metal as it oxidizes.
Reaction (Chemical/Physical):
⇒ Reaction, the reciprocal action of chemical gents upon each other; chemical change.
⇒ A change from one state (solid or liquid or gas) to another without a change in chemical composition which can be made by freezing, melting or boiling a substance. Chemical change.
More information:
This reaction is exothermic. Due to the attractive interactions between the ions, the reaction between positively charged hydride and negatively charged iodide releases heat energy. Additionally, the resulting hydrogen iodide is a more stable compound than the separate reactants.
Thank you,
Eddie