Chemical Reaction Benchmark Review 24-25

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What is photosynthesis?

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Photosynthesis is the process by which green plants, algae, and some bacteria convert light energy into chemical energy in the form of glucose, using carbon dioxide and water, and releasing oxygen as a byproduct.

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What are the products of photosynthesis?

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The products of photosynthesis are glucose and oxygen.

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What is a chemical change?

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A chemical change is a process that involves the transformation of one or more substances into different substances, often with the release or absorption of energy.

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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.

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What is the law of conservation of mass?

Back

The law of conservation of mass states that mass is neither created nor destroyed in a chemical reaction; the total mass of reactants equals the total mass of products.

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What is a reactant?

Back

A reactant is a substance that undergoes a chemical change in a reaction.

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What is a product?

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A product is a substance that is formed as a result of a chemical reaction.

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What is the difference between an element and a compound?

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An element is a pure substance that cannot be broken down into simpler substances, while a compound is a substance formed when two or more elements chemically bond together.

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What is an extended structure?

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An extended structure is a large arrangement of atoms or molecules that are bonded together in a repeating pattern, such as in crystals.

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What is the role of chlorophyll in photosynthesis?

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Chlorophyll is a green pigment found in plants that absorbs light energy, which is essential for the process of photosynthesis.