<u>The acids DO NOT return the pink phenolphthalein indicator. </u>Phenolphthalein in acidic solutions remains colorless but in basic solutions takes a pink color. Phenolphthalein is a weak acid. The indicator changes color, it can be magenta or pink with a pH value of 10.
When too much sugar is taken, it leads to dental caries because bacteria uses sugar to damage the enamel by producing harmful acid.
Dental caries:
- Is the destruction of the enamel
- Is caused by bacteria in the mouth
- Leads to tooth decay
When we eat too much sugar, bacteria takes this sugar and synthesizes acid. This acid then eats through the enamel and weakens it till it is destroyed thereby leading to tooth decay.
In conclusion, we should not eat too much sugar or else we might develop tooth decay.
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Early engines used ___ to perform
D: steam power
"Fertile," as in fertile soil or fertile land, means that the soil and land is rich in nutrients for plants, and therefore is good for farming crops.
