Law of Conservation of Mass

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What is the Law of Conservation of Mass?

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The Law of Conservation of Mass states that mass is neither created nor destroyed in a chemical reaction; it remains constant.

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What is a pure substance?

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A pure substance is a material that has a constant composition and consistent properties throughout, such as water.

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How do you measure the mass of an object?

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You can measure the mass of an object using a balance or scale.

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What happens to a solid at its melting point?

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When a solid reaches its melting point, it can change into a liquid.

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What is a chemical change?

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A chemical change is any change that results in the formation of new chemical substances.

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What is a mixture?

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A mixture is a combination of two or more substances where each retains its own properties.

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What is the difference between an element and a compound?

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An element is a pure substance made of only one type of atom, while a compound is made of two or more different types of atoms chemically bonded together.

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What is the boiling point?

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The boiling point is the temperature at which a liquid turns into vapor.

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What is density?

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Density is the mass of a substance divided by its volume, often expressed in grams per cubic centimeter (g/cm³).

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What is the freezing point?

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The freezing point is the temperature at which a liquid turns into a solid.