Balancing and Identifying Chemical Equations

Front

What is a chemical reaction?

Back

A process in which substances (reactants) are transformed into different substances (products) through the breaking and forming of chemical bonds.

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What are reactants in a chemical equation?

Back

The starting substances that undergo a chemical change in a reaction.

Front

What are products in a chemical equation?

Back

The substances that are formed as a result of a chemical reaction.

Front

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

What is a synthesis reaction?

Back

A type of chemical reaction where two or more simple substances combine to form a more complex product. Example: A + B → AB.

Front

What is a decomposition reaction?

Back

A type of chemical reaction where a single compound breaks down into two or more simpler products. Example: AB → A + B.

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What is a single replacement reaction?

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A type of chemical reaction where one element replaces another in a compound. Example: A + BC → AC + B.

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What is a double replacement reaction?

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A type of chemical reaction where the anions and cations of two different compounds exchange places, forming two new compounds. Example: AB + CD → AD + CB.

Front

What is combustion?

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Front

What is a coefficient in a chemical equation?

Back

The large number in front of a chemical formula that indicates how many molecules or moles of that substance are involved in the reaction.