Evidence of Chemical Reactions

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What is evidence of a chemical reaction?

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Evidence of a chemical reaction includes any observable change that indicates a new substance has formed.

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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 substances that are formed as a result of a chemical reaction.

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What does the Law of Conservation of Mass state?

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The Law of Conservation of Mass states that mass is never created or destroyed in a chemical reaction.

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What is a chemical equation?

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A chemical equation is a symbolic representation of a chemical reaction, showing the reactants and products.

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What does it mean when a solid forms in a liquid during a reaction?

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The formation of a solid in a liquid indicates a chemical reaction has occurred, often referred to as precipitation.

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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 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 an example of a gas being produced in a chemical reaction?

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An example is the production of carbon dioxide gas when vinegar reacts with baking soda.

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What is an indicator of a chemical reaction?

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Indicators of a chemical reaction can include color change, temperature change, gas production, or the formation of a precipitate.