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Questions and Answers
What is a chemical reaction?
What is a chemical reaction?
- A change in which one or more substances are converted into new substances. (correct)
- A type of physical change.
- The freezing of a substance.
- The mixing of two solutions.
What occurs in a double-displacement reaction?
What occurs in a double-displacement reaction?
A precipitate, water, or a gas forms when two ionic compounds in solution are combined.
What is an inhibitor?
What is an inhibitor?
A substance that prevents certain chemical reactions.
What happens during synthesis in a chemical reaction?
What happens during synthesis in a chemical reaction?
What is decomposition?
What is decomposition?
What are reactants?
What are reactants?
What is a catalyst?
What is a catalyst?
What does endothermic mean?
What does endothermic mean?
What is single-displacement?
What is single-displacement?
What is the role of coefficients in a chemical equation?
What is the role of coefficients in a chemical equation?
In a balanced equation, the number of atoms of each element is equal on both sides.
In a balanced equation, the number of atoms of each element is equal on both sides.
What are products in a chemical reaction?
What are products in a chemical reaction?
What is a precipitate?
What is a precipitate?
Flashcards
What is a chemical reaction?
What is a chemical reaction?
A change in which one or more substances are converted into new substances.
What is an inhibitor?
What is an inhibitor?
A substance that prevents certain chemical reactions.
What is synthesis?
What is synthesis?
When two or more substances combine to form another substance.
What is decomposition?
What is decomposition?
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What are reactants?
What are reactants?
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What is a catalyst?
What is a catalyst?
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What does endothermic mean?
What does endothermic mean?
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What is single-displacement?
What is single-displacement?
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What is the role of coefficients in a chemical equation?
What is the role of coefficients in a chemical equation?
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What are products in a chemical reaction?
What are products in a chemical reaction?
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What is a precipitate?
What is a precipitate?
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What occurs in a double-displacement reaction?
What occurs in a double-displacement reaction?
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True or False: In a balanced equation, the number of atoms of each element is equal on both sides.
True or False: In a balanced equation, the number of atoms of each element is equal on both sides.
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Study Notes
Chemical Reactions Overview
- A chemical reaction involves the transformation of substances into new forms, indicating changes at the molecular level.
- Reactants are the initial substances that undergo transformation in a chemical reaction.
- Products are the new substances formed as a result of the chemical reaction.
Types of Reactions
- Double-displacement reactions occur when two ionic compounds react in solution, resulting in the formation of a precipitate, water, or gas.
- Single-displacement reactions involve one element taking the place of another within a compound, leading to a new compound and a differing element.
- Synthesis reactions involve the combination of two or more reactants to form a single product.
- Decomposition reactions break down a compound into two or more simpler substances.
Reaction Characteristics
- A precipitate is an insoluble solid produced from a double-displacement reaction when ionic solutions are mixed.
- Inhibitors are substances that block or slow down specific chemical reactions, affecting the reaction rate.
- Catalysts are substances that accelerate the rate of chemical reactions without being consumed in the process.
Energy Considerations
- Endothermic reactions absorb energy, primarily in the form of heat, resulting in a temperature drop in the surroundings.
Chemical Equation Essentials
- Coefficients are numbers placed before chemical symbols in equations indicating the amount of each reactant or product involved.
- A balanced equation reflects an equal number of atoms for each element on both sides of the equation, signifying mass conservation.
Key Definitions
- Balanced reactions are crucial for accurate representation in chemistry, ensuring that mass is conserved during the reaction process.
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Description
Test your knowledge on chemical reactions with this set of flashcards. Each card defines key terms essential for understanding the principles of chemical changes, such as double-displacement and inhibitors. Perfect for students preparing for assessments in chemistry.
