Chemical Reactions

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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 of a chemical reaction?

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The best evidence of a chemical reaction is the production of a new substance.

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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, located to the right of the arrow in a chemical equation.

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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, located to the left of the arrow in a chemical equation.

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What does the arrow in a chemical equation represent?

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The arrow in a chemical equation represents the direction of the reaction, indicating that reactants are transformed into products.

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What is the chemical formula for sulfuric acid?

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The chemical formula for sulfuric acid is H₂SO₄.

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What is the significance of balancing a chemical equation?

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Balancing a chemical equation ensures that the law of conservation of mass is followed, meaning the number of atoms of each element is the same on both sides of the equation.

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What happens to the atoms during a chemical reaction?

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During a chemical reaction, atoms are rearranged to form new substances, but the total number of atoms remains the same.

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What is combustion?

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Combustion is a chemical reaction that occurs when a substance reacts rapidly with oxygen, producing heat and light, often resulting in the formation of carbon dioxide and water.

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What is a catalyst?

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A catalyst is a substance that speeds up a chemical reaction without being consumed in the process.