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Milk of magnesia is a solution of magnesium hydroxide (a white powder) in water. It is a base because when the powder is introduced into water, it partially dissociates (breaks up) into magnesium (Mg2+) and hydroxide (OH-) ions. Pure water contains an equal number of OH- ions and another ion called hydronium ions (H3O+). Because the milk of magnesia adds OH- ions to the water, there are now more OH- ions than H3O+ ions. This means you have a base. On the opposite end, if there are more H3O+ ions than OH- ions, which happens when you add vinegar or lemon juice to water, you have an acid. Hope that makes sense!

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12y ago
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11y ago

Yes, OH- ions from dissolved Mg(OH)2 are strongly basic.

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10y ago

It is a strong base.

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Q: Why is milk of magnesia a base?
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Related questions

Is milk of magnesia a acid base or neutral?

Milk of magnesia is a base.


Is milk of magnesia base?

Milk of magnesia mainly contains magnesium hydroxide which is a base.


Is magnesia milk an acid or base?

Milk of magnesia (pH of 8.5) is a base because it is used to calm an upset stomach (due to too much acid).


Hs milk of magnesia got acid?

No, Milk of magnesia is a base and will neutralize acid.


Is milk of magnesia a basic?

Milk of magnesia is a suspension of Magnesium Hydroxide in water, which is a base.


Is milk of magnesia an acid or a bass?

Milk of Magnesia is an antacid and therefore a base with a ph of about 8.3


Which acid or base is present in milk of magnesia?

Milk of Magnesia is basic, so there are bases in it - not acids. Magnesium Hydroxide is in it (Mg(OH)2).


Is milk of Magnesia an acid?

No it is an alkali, aka a base.


Is milk of magnesia is a acid or base or neutral?

it is acid


Is milk of magnesia acid base or neutral?

basic.


Is milk of magnesia an acid or bases?

Milk of Magnesia is magnesium hydroxide. It is basic in nature and is one of antacids, which is used to curb acidity.


Is milk of magnesia acid or magnesia?

magnesia