I believe it’s the third option
Chemically combined to make a new pure substance
Answer: The concentration of ions in vinegar is 0.001 M.
Explanation:
Given: pH = 3.0
pH is the negative logarithm of concentration of hydrogen ion.
The expression for pH is as follows.
Substitute the value into above expression as follows.
Thus, we can conclude that the concentration of ions in vinegar is 0.001 M.
The balanced reaction that describes the reaction of chlorine gas and sodium iodide to produce elemental iodine and sodium chloride in aqueous solution is expressed Cl2+2NaI= I2 + 2NaCl. This kind of reaction is called single replacement reaction where the anion, in this case, is only replaced.