Two ions: H+ and I-
Hydrogen iodide is dissociated in water.
Hydrogen iodide can be tested using silver nitrate solution. When hydrogen iodide is bubbled through silver nitrate solution, a yellow precipitate of silver iodide is formed. This confirms the presence of iodide ions in the sample.
Compound HI is hydrogen iodide, which is a binary compound formed from hydrogen and iodine. It is a colorless gas at room temperature and is highly reactive. Hydrogen iodide is commonly used in organic chemistry reactions as a source of iodide ions.
Hydroiodic acid (HI) is formed when hydrogen iodide (HI) dissociates in an aqueous solution. It is a strong acid that ionizes completely in water to yield hydronium ions (H₃O⁺) and iodide ions (I⁻).
Calcium iodide is an ionic compound composed of one calcium ion (Ca2+) and two iodide ions (I-). Therefore, there are a total of 3 ions present in calcium iodide.
Hydrogen fluoride is not a strong electrolyte. This is because it does not fully dissociate into ions when dissolved in water, unlike hydrogen chloride, hydrogen bromide, and hydrogen iodide.
The reaction between concentrated sulfuric acid and solid potassium iodide does not produce hydrogen iodide. Instead, it generates sulfur dioxide gas, potassium sulfate, and iodine. Therefore, this reaction is unsuitable for obtaining hydrogen iodide.
This is a water solution of hydrogen iodide which make hydroiodic acid. That is, HI(aq) means HI aqueous which is hydroiodic acid.
The number of barium ions is 0,188.10e23.
I am a little unsure of your question. Reactions can't be acidic, but solutions can be. When HI dissolves it dissociates into ions. (H+ and I-) An acid is defined as a donor of H+ so HI dissolved in water is acidic
There would be three unshared pairs of electrons in a molecule of hydrogen iodide.
No reaction occurs between the acidified hydrogen peroxide and the other halide ions, because the hydrogen ions involved in both cases are in the same group. For a reaction to occur it needed to have an element that is more reactive than hydrogen.