Chemical Reactions

Front

What is a chemical reaction?

Back

A process where reactants are transformed into products, involving the breaking and forming of chemical bonds.

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What is the law of conservation of mass?

Back

In a chemical reaction, mass is neither created nor destroyed; the total mass of reactants equals the total mass of products.

Front

How do you balance a chemical equation?

Back

By adjusting the coefficients of the reactants and products to ensure the same number of each type of atom on both sides.

Front

What is a reactant?

Back

A substance that undergoes change during a chemical reaction.

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What is a product?

Back

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

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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 but not its chemical composition, while a chemical change results in the formation of new substances.

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What are coefficients in a chemical equation?

Back

Numbers placed before compounds in a chemical equation to indicate the number of molecules or moles of that substance.

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What is a balanced chemical equation?

Back

An equation where the number of atoms for each element is the same on both sides of the equation.

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What is a combustion reaction?

Back

A type of chemical reaction that occurs when a substance combines with oxygen, releasing energy in the form of light or heat.

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What is a synthesis reaction?

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A reaction where two or more reactants combine to form a single product.