Classifying Chemical Reactions Flashcards

Questions and Answers

What is a synthesis reaction?

A reaction where a compound breaks up into two or more elements.

A reaction that involves an exchange of ions between compounds.

A reaction where 2 or more substances react to form a single product. (correct)

A reaction where atoms of one element replace another in a compound.

Which of the following describes a decomposition reaction?

A reaction where a compound breaks up into two or more elements or new compounds. (correct)

A reaction where a hydrocarbon reacts with oxygen.

A reaction where 2 or more substances form a single product.

A reaction involving an exchange of ions.

What is a characteristic of a single-replacement reaction?

A reaction involving the exchange of ions between two compounds.

A reaction forming a solid from a solution.

A reaction that creates heat and light through combustion.

A reaction where atoms of one element replace the atoms of another element in a compound. (correct)

What defines a double-replacement reaction?

A reaction involving an exchange of ions between two compounds. Signup and view all the answers

What is a combustion reaction?

A reaction where a hydrocarbon reacts with oxygen. Signup and view all the answers

Define a chemical equation.

A way to describe a chemical reaction using chemical formulas and symbols. Signup and view all the answers

What is a precipitate?

A solid that forms from a solution during a chemical reaction. Signup and view all the answers

What is the role of a coefficient in a chemical equation?

A number in front of a chemical formula indicating the number of molecules or atoms involved. Signup and view all the answers

What is a word equation?

An equation in which the reactants and products are represented by words. Signup and view all the answers

What defines a formula equation?

A representation of reactants and products by their symbols or formulas. Signup and view all the answers

What is electrolysis?

The decomposition of a substance by an electric current. Signup and view all the answers

Study Notes

Types of Chemical Reactions

Synthesis Reaction: Combines two or more reactants to create a single product (e.g., A + B → AB).
Decomposition Reaction: A single compound breaks down into two or more elements or new compounds (e.g., AB → A + B or ABC → AB + C).
Single-Replacement Reaction: An atom from one element replaces an atom in a compound (e.g., A + BX → AX + B).
Double-Replacement Reaction: Involves the exchange of ions between two compounds (e.g., AX + BY → AY + BX).
Combustion Reaction: Hydrocarbons react with oxygen to produce energy, carbon dioxide, and water.

Chemical Notation

Chemical Equation: Describes a chemical reaction using symbols and formulas to represent reactants and products.
Precipitate: A solid that forms when a solution undergoes a chemical reaction, indicating a new substance has been created.
Coefficient: Indicates the number of molecules or atoms involved in the reaction, placed in front of chemical formulas (e.g., 2H₂O indicates two water molecules).
Word Equation: Represents reactants and products using words instead of symbols (e.g., hydrogen + oxygen → water).
Formula Equation: Uses chemical symbols or formulas to depict the reactants and products in a chemical reaction (e.g., 2H₂ + O₂ → 2H₂O).
Electrolysis: The process of breaking down a substance using an electric current, often used to separate elements from compounds.

Description

Test your knowledge with these flashcards on different types of chemical reactions including synthesis, decomposition, and single-replacement reactions. Ideal for chemistry students looking to reinforce their understanding of reaction classifications.