Chemical Reactions Practice

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 the main types of chemical reactions?

Back

1. Synthesis 2. Decomposition 3. Single Replacement 4. Double Replacement 5. Combustion

Front

What is a synthesis reaction?

Back

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

Front

What is a decomposition reaction?

Back

A type of chemical reaction where a single compound breaks down into two or more simpler products.

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What is a single replacement reaction?

Back

A type of chemical reaction where one element replaces another element in a compound.

Front

What is a double replacement reaction?

Back

A type of chemical reaction where the anions and cations of two different compounds exchange places, forming two new compounds.

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What is combustion?

Back

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

Front

How do you balance a chemical equation?

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By ensuring that the number of atoms of each element is the same on both sides of the equation, often by adjusting coefficients.

Front

What is the law of conservation of mass?

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

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What does the subscript in a chemical formula indicate?

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The number of atoms of the element in one molecule of the compound.