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 an endothermic reaction?

Back

A reaction that absorbs heat from its surroundings.

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What is an exothermic reaction?

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A reaction that releases heat to its surroundings.

Front

What is a limiting reactant?

Back

The reactant that is completely consumed in a chemical reaction, determining the amount of product formed.

Front

What is a balanced chemical equation?

Back

An equation that has the same number of atoms of each element on both sides, obeying the law of conservation of mass.

Front

What is the purpose of balancing chemical equations?

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To ensure that the same number of atoms of each element is present before and after the reaction.

Front

What is combustion?

Back

A chemical reaction that occurs when a substance reacts rapidly with oxygen, producing heat and light.

Front

What are the products of complete combustion of hydrocarbons?

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Carbon dioxide (CO2) and water (H2O).

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What is the role of heat in combustion reactions?

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Heat is necessary to initiate combustion and sustain the reaction.

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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.