Chemical Changes

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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.

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What is evidence that a chemical change has occurred?

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Evidence of a chemical change includes the formation of a new substance, a change in color, the production of gas, or a change in temperature.

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What is an example of a chemical change?

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Rust forming on a bike is an example of a chemical change.

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What are reactants in a chemical reaction?

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Reactants are the starting substances that undergo a chemical change to form products.

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What are products in a chemical reaction?

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Products are the new substances formed as a result of a chemical reaction.

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What happens during a chemical reaction?

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During a chemical reaction, bonds between atoms are broken and new bonds are formed, resulting in the creation of new substances.

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What is the role of baking soda in a chemical reaction?

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Baking soda can act as a reactant that produces carbon dioxide gas when it reacts with an acid.

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What is an example of a physical change?

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Melting a popsicle is an example of a physical change, as it does not create a new substance.

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How can you tell if a chemical change has occurred?

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You can tell if a chemical change has occurred by observing changes such as color change, gas production, or the formation of a precipitate.

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

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A physical change alters the form of a substance without changing its chemical composition, while a chemical change results in the formation of new substances.