Human gastric juice contains an appropriate amount of hydrochloric acid, which can aid digestion. However, if gastric acid is secreted too much, people will feel stomach pain. Xiaojun brought an antac

Human gastric juice contains an appropriate amount of hydrochloric acid, which can aid digestion. However, if gastric acid is secreted too much, people will feel stomach pain. Xiaojun brought an antacid (to treat

Make a guess. The larger the contact area between substances, the faster the reaction rate. After chewing, the reaction between the drug and gastric acid is faster, and the curative effect is faster. Therefore, the answer is: after chewing, the curative effect is faster

In order to design the experiment for comparison, the tablets should be crushed. So the answer is: Grind it

Extended exploration (1) The reactants of magnesium carbonate in treating hyperacidity are magnesium carbonate and hydrogen chloride, and the products are magnesium chloride, water and carbon dioxide. So the answer is: MgCO3 2HCl═MgCl2 H2O CO2↑

(2) Medicines taken by people must meet certain conditions, for example, they must be less harmful to the human body and have the effect of treating diseases. So the answer is: Harmless to the body; can interact with gastric acid

(3) Carbonate and hydrochloric acid react to produce carbon dioxide gas, which can aggravate gastric ulcers, so the answer is: Carbonate and hydrochloric acid react Generates carbon dioxide gas, aggravating gastric ulcer condition.