Physical and Chemical Changes

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What is a solute?

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A solute is the substance that is dissolved in a solution.

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What is a solvent?

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A solvent is the substance that dissolves the solute in a solution.

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What is a chemical change?

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A chemical change is a process where one or more substances are transformed into new substances with different properties.

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What is a physical change?

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A physical change is a change that affects one or more physical properties of a substance without altering its chemical composition.

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What is a precipitate?

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A precipitate is a solid that forms and settles out of a liquid mixture during a chemical reaction.

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What happens when iron rusts?

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When iron rusts, it undergoes a chemical change, forming a new substance (rust) due to reaction with oxygen and moisture.

Front

How do you calculate the total number of atoms in a chemical formula?

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

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

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What is an example of a physical change?

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Melting ice is an example of a physical change, as it changes state from solid to liquid without altering its chemical composition.

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What is an example of a chemical change?

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Burning wood is an example of a chemical change, as it transforms into ash and gases, creating new substances.