Physical & Chemical Properties and Changes

Front

What is a physical change?

Back

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

Front

What is a chemical change?

Back

A chemical change is a change that results in the formation of new chemical substances, involving a rearrangement of atoms.

Front

Is melting ice a physical change?

Back

Yes, melting ice is a physical change because it changes from solid to liquid without changing its chemical composition.

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What happens when baking soda reacts with vinegar?

Back

When baking soda reacts with vinegar, a chemical change occurs, producing carbon dioxide gas and other substances.

Front

What is an example of a physical change?

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An example of a physical change is the dissolving of sugar in water.

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What is an example of a chemical change?

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An example of a chemical change is rust forming on iron.

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Does a physical change alter the chemical makeup of a substance?

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No, a physical change does not alter the chemical makeup of a substance.

Front

What is the effect of acid rain on marble?

Back

Acid rain causes a chemical change that damages marble by reacting with calcium carbonate.

Front

Is the absorption of water by a paper towel a physical or chemical change?

Back

The absorption of water by a paper towel is a physical change.

Front

What is the difference between physical and chemical properties?

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Physical properties can be observed without changing the substance's identity, while chemical properties can only be observed during a chemical reaction.