Chemical Reactions

Front

What is a chemical reaction?

Back

A process in which substances (reactants) undergo a transformation to form new substances (products).

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What is the law of conservation of mass?

Back

In a chemical reaction, mass is neither created nor destroyed; it remains constant.

Front

What is a balanced chemical equation?

Back

An equation that has the same number of each type of atom on both sides, indicating that mass is conserved.

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What is a coefficient in a chemical equation?

Back

A number placed in front of a chemical formula to indicate how many molecules or moles of that substance are involved in the reaction.

Front

What is a reactant?

Back

A substance that undergoes change in 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 combustion?

Back

A chemical reaction that occurs when a substance reacts with oxygen, producing heat and light, typically resulting in carbon dioxide and water.

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What is a precipitate?

Back

A solid that forms and settles out of a liquid mixture when two liquids are mixed.

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What is a single replacement reaction?

Back

A reaction in which one element replaces another element in a compound.

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What is a double replacement reaction?

Back

A reaction where two compounds exchange ions or bonds to form two new compounds.