Answer:
Correct statements are: Dissociation of water produces equal numbers of OH- and H+. Water ionizes to form hydroxide and hydronium ions. Dissociation of water is reversible.
Explanation:
<u>(True) Dissociation of water produces equal numbers of OH- and H+.</u>
Water molecules are formed by one ion of OH- and one ion of H+ (which adds up to ), son when it dissociates (brakes down), for each molecule of water, one ion of OH- and one ion of H+ is obtained.
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<u>(False) Dissociation of water produces equal masses of OH- and H+.</u>
One ion of OH- is formed by one atom of oxygen and one atom of hydrogen, which are heavier than the lone atom of hydrogen in the H+ ion, which makes the mass of OH- bigger than the mass of H+ on each water molecule.
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<u>(True) Water ionizes to form hydroxide and hydronium ions.</u>
Hydroxide is the name of the OH- ion and hydronium is the name of the H+ ion.
<u>(False) Water ionizes to form peroxide and hydronium ions.</u>
Hydrogen Peroxide formula is H2O2, which is different from water and from water's ions OH- and H+. Hydrogen peroxide is usually obtained from an organic compound called anthraquinone, not from water dissociation.
<u>(False) Dissociation of water is not reversible.</u>
Hydronium and hydroxide ions can be reunited to form water molecules. Actually, in every portion of water there is a very small amount of hydronium and hydroxide ions constantly turning into water and water dissociating itself into hydronium and hydroxide (reversed dissociation), which keeps the water in equilibrium.
<u>(True) Dissociation of water is reversible.</u>
As explained above.