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What is a chemical change?

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A chemical change is a process where substances combine or break apart to form new substances with different properties. Examples include burning, rusting, and baking.

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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. Examples include melting, freezing, and dissolving.

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What happens when baking soda and vinegar are mixed?

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When baking soda and vinegar are mixed, a chemical change occurs, producing carbon dioxide gas.

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What type of change occurs when sugar dissolves in water?

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When sugar dissolves in water, a physical change occurs.

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Is cracking an egg a chemical or physical change?

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Cracking an egg is a physical change.

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What indicates a chemical change has occurred?

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Signs of a chemical change include color change, temperature change, gas production (bubbles), and the formation of a precipitate.

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What is an example of a chemical change involving burning?

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Burning sugar is an example of a chemical change.

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What is an example of a physical change involving water?

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Melting ice is an example of a physical change involving 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 change the chemical composition of the substance.

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What happens to the properties of substances during a chemical change?

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The properties of substances change during a chemical change because new substances are formed.