142 questions and answers in this section

Natural Sciences » Chemistry

Explain why adding baking soda to a tomato sauce can make it less acidic?

Explain why adding baking soda to a tomato sauce can make it less acidic?

Tomato sauce is a common culinary preparation mainly composed of tomatoes. Tomatoes contain a wide variety of chemical compounds, with water being the most abundant, representing about...

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Explain why sugar caramelizes when heated?

Explain why sugar caramelizes when heated?

Sugar caramelization is a complex chemical process that occurs when sugar is heated to a sufficiently high temperature, usually above 170°C. When sugar is heated, sucrose molecules...

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Explain why potatoes become soft if they are cooked in salty water?

Explain why potatoes become soft if they are cooked in salty water?

Potatoes have a unique cellular structure that gives them their characteristic texture. When cooked in water, the cells of the potatoes absorb some of the...

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Explain why does ice float on water?

Explain why does ice float on water?

Ice floats on water due to its density. When water freezes to form ice, the water molecules arrange themselves in a crystalline structure that takes...

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Explain why the colors of paintings fade over time?

Explain why the colors of paintings fade over time?

The colors of paintings can fade over time due to exposure to light. The pigments used in paintings can be sensitive to light, especially to...

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Explain why butter becomes soft at room temperature but solidifies again in the refrigerator?

Explain why butter becomes soft at room temperature but solidifies again in the refrigerator?

Butter is mainly composed of fats, water, and proteins. Fats represent about 80% of butter, while water makes up about 15%. Proteins, on the other...

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Explain why bananas turn yellow?

Explain why bananas turn yellow?

Green bananas mainly contain chlorophyll, a green pigment found in many plants. As bananas ripen, chlorophyll breaks down and allows other pigments to appear. Among...

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Explain why fireworks explode in colors.

Explain why fireworks explode in colors.

When a firework is lit, the chemical components inside, such as black powder or other pyrotechnic mixtures, ignite. This exothermic chemical reaction produces a large...

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Explain why Marie Curie was the first woman to receive a Nobel Prize.

Explain why Marie Curie was the first woman to receive a Nobel Prize.

Marie Curie discovered radioactivity in 1898. She observed that certain minerals, such as pitchblende, emitted spontaneous radiations. These radiations were able to penetrate through matter...

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Explain why glass is translucent while metal is not.

Explain why glass is translucent while metal is not.

The main difference between glass and metal lies in their atomic structure. Glass is an amorphous solid composed of networks of disordered molecular bonds, giving...

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