Chemistry MP1CP1 Review

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What is a compound?

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A compound is a pure substance formed when two or more elements are chemically bonded together. It has distinct properties that are different from the individual elements.

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What is a mixture?

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A mixture is a combination of two or more substances that are not chemically bonded. Each substance retains its own properties.

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How do you calculate density?

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Density is calculated using the formula: Density = Mass/Volume.

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What is a chemical property?

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A chemical property is a characteristic of a substance that can only be observed during a chemical reaction, such as reactivity with acid.

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What is a physical property?

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A physical property is a characteristic of a substance that can be observed without changing its chemical identity, such as color or boiling point.

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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 a substance.

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What is rusting?

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Rusting is a chemical process where iron reacts with oxygen and moisture to form iron oxide, commonly known as rust.

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What is boiling?

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Boiling is a physical change where a liquid turns into vapor when it reaches its boiling point.

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What is the significance of melting point in identifying substances?

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The melting point is a characteristic property of a substance that can help identify it, as different substances have unique melting points.

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What is the role of barium chloride in chemical reactions?

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Barium chloride is often used in chemical tests to identify the presence of sulfate ions, as it forms a precipitate with them.