Chemical and Physical Properties

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What is a chemical property?

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A characteristic of a substance that can only be observed during a chemical reaction, such as reactivity with acids or bases.

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What is a physical property?

Back

A characteristic of a substance that can be observed without changing its chemical composition, such as color, density, or melting point.

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What does it mean if a substance is described as corrosive?

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It means the substance can cause damage to living tissue or materials through a chemical reaction.

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What is rust?

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Rust is a chemical compound formed when iron reacts with oxygen and moisture, resulting in a reddish-brown coating.

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What is solubility?

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Solubility is the ability of a substance to dissolve in a solvent, such as salt dissolving in water.

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What is the difference between a chemical change and a physical change?

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A chemical change results in the formation of new substances, while a physical change does not alter the chemical composition of the substance.

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Can physical properties be observed during a chemical reaction?

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No, physical properties can be observed without a chemical reaction.

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What happens during the baking of biscuits when baking powder is used?

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Baking powder reacts to release carbon dioxide, causing the dough to rise, which is a chemical change.

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What is an example of a chemical property?

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Flammability, which describes how easily a substance can catch fire.

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What is an example of a physical property?

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Melting point, which is the temperature at which a solid becomes a liquid.