The correct answer is D. Magnesium hydroxide.
Milk of magnesia is a suspension of magnesium hydroxide in water. It is a white, milky liquid that is used as an antacid and laxative. It is also used to treat heartburn, indigestion, and acid reflux.
Magnesium hydroxide is a basic compound that reacts with acids to form salts and water. When it is taken orally, it reacts with stomach acid to form magnesium chloride and water. This neutralizes the stomach acid and relieves heartburn and indigestion.
Magnesium hydroxide is also a laxative. It works by drawing water into the intestines, which softens the stool and makes it easier to pass.
Milk of magnesia is a safe and effective over-the-counter medication. However, it should not be taken by people with kidney disease or those who are taking certain medications, such as digoxin or lithium.
A. Magnesium carbonate is a white, odorless powder that is used as a dietary supplement and antacid. It is also used in the manufacture of ceramics, glass, and other products.
B. Sodium bicarbonate is a white, crystalline powder that is used as a baking soda, antacid, and leavening agent. It is also used in the manufacture of soaps, detergents, and other products.
C. Calcium hydroxide is a white, powdery substance that is used as a building material, antacid, and in the manufacture of cement.