People's gastric juice contains a proper amount of hydrochloric acid, which can help digestion, but if gastric acid is secreted too much, people will feel stomachache. Xiaoming brought two kinds of an

People's gastric juice contains a proper amount of hydrochloric acid, which can help digestion, but if gastric acid is secreted too much, people will feel stomachache. Xiaoming brought two kinds of antacids (treatment). (1) The chemical equation of the reaction between magnesium hydroxide and hydrochloric acid is Mg(OH)2+2HCl═MgCl2+2H2O. The reaction equation between magnesium carbonate and hydrochloric acid is as follows.

MgCO3+2HCl═MgCl2+H2O+CO2↑ The relative molecular weight of magnesium hydroxide is 58, and that of magnesium carbonate is 84. It can be seen from the two equations that the mass of magnesium hydroxide is less than that of magnesium carbonate when the same mass of hydrogen chloride is reacted, so magnesium hydroxide reacts more hydrochloric acid than magnesium carbonate.

(2) Because these carbonates react with gastric acid to produce carbon dioxide gas, which aggravates the condition of gastric ulcer, patients with gastric ulcer (gastric ulcer) should not take antacids containing carbonate when gastric acid is too high;

(3) Chewing can accelerate the reaction between drugs and gastric acid, with quick curative effect. Take two identical tablets, one of which is ground and put into the test tube 1, and the other is directly put into the test tube 2, and add 5% diluted hydrochloric acid with the same mass respectively. The reaction speed of test tube 1 is faster than that of test tube 2, which shows that chewing can accelerate the reaction speed of drugs with gastric acid.

So the answer is: (1) more than (2) carbon dioxide gas produced by the reaction of carbonate with gastric acid may aggravate the disease of gastric ulcer.

(3) Take two identical tablets, put one into the test tube 1 after grinding, and put the other directly into the test tube 2, and add 5% diluted hydrochloric acid with the same mass respectively. The reaction speed in test tube 1 is faster than that in test tube 2, which shows that the drug can accelerate the reaction speed with gastric acid after chewing and has a quick curative effect.