Author Question: How does adding cooking oil to water prevent it from boiling over when pasta is added? ... (Read 282 times)

gonzo233 · **on:** Aug 21, 2018

How does adding cooking oil to water prevent it from boiling over when pasta is added?

Question 2

What are antacids and how do they neutralize stomach acid?

momo1250 · **Reply #1 on:** Aug 21, 2018

Answer to Question 1

Water molecules are polar and are strongly attracted to one another. When pure water is brought to a boil it bubbles but does not boil over. However, when pasta is added it begins to break down, disrupting the interaction between water molecules. As a result, the surface of each of the bubbles in the boiling water expands, causing the water to flow out of the pot. However, oil is nonpolar and does not mix well with water. When oil is added to the water beforehand it forms droplets at the surface that act as bubble breakers.

Answer to Question 2

Antacids are medicines that neutralize stomach acid. Although there are a variety of antacids on the market, they commonly contain one or more of the following active ingredients: aluminum hydroxide, calcium carbonate, magnesium hydroxide, and sodium bicarbonate. The alkaline ingredient in the antacid reacts with the acid in the stomach and produces salt and water. Thus, the stomach acid is neutralized.