Interpretation:
The evidence for the action of antacid to relieve stomach ailments as a
Concept Introduction:
A chemical reaction takes place if a reactant undergoes a chemical change and a new substance is formed. The new substance formed is known as the product of the chemical reaction.
Answer to Problem 47A
The action of antacid which is a base is a chemical reaction since it neutralizes the acid in the stomach.
Explanation of Solution
The antacid is a base (alkaline) which reacts with the acid present in the stomach. The reaction between and acid and a base is a chemical reaction called the neutralization reaction. Consumption of antacid neutralizes the acid in the stomach and brings it to a normal pH of nearly 7 thereby relieving the pain.
Therefore, antacids create a neural pH when they react with acids and hence are effective in relieving stomach ailments.
Chapter 7 Solutions
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