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Questions and Answers
What is the chemical formula for dinitrogen monoxide?
What is the chemical formula for dinitrogen monoxide?
- N2O (correct)
- NO
- N2O2
- O2N
A decomposition reaction involves breaking a compound down into smaller compounds or elements.
A decomposition reaction involves breaking a compound down into smaller compounds or elements.
True (A)
What is produced when table salt is decomposed?
What is produced when table salt is decomposed?
Sodium metal and chlorine gas
In a synthesis reaction, two or more elements or compounds combine to form a ______.
In a synthesis reaction, two or more elements or compounds combine to form a ______.
Match the following types of reactions with their definitions:
Match the following types of reactions with their definitions:
Which of the following is NOT one of the six common types of chemical reactions identified by chemists?
Which of the following is NOT one of the six common types of chemical reactions identified by chemists?
Combustion reactions only involve hydrocarbons and oxygen.
Combustion reactions only involve hydrocarbons and oxygen.
What type of reaction occurs when zinc reacts with hydrochloric acid to produce zinc chloride and hydrogen gas?
What type of reaction occurs when zinc reacts with hydrochloric acid to produce zinc chloride and hydrogen gas?
In a __________ reaction, two or more reactants combine to form a single product.
In a __________ reaction, two or more reactants combine to form a single product.
Match the type of chemical reaction to its description:
Match the type of chemical reaction to its description:
What is formed during a combustion reaction?
What is formed during a combustion reaction?
Identify a common characteristic of ionic compounds.
Identify a common characteristic of ionic compounds.
Which of the following is NOT a main type of chemical reaction?
Which of the following is NOT a main type of chemical reaction?
A neutralization reaction typically involves an acid and a base.
A neutralization reaction typically involves an acid and a base.
What type of reaction occurs when two or more substances combine to form a single product?
What type of reaction occurs when two or more substances combine to form a single product?
In a ________ reaction, elements switch places with one another.
In a ________ reaction, elements switch places with one another.
Match the following types of chemical reactions with their definitions:
Match the following types of chemical reactions with their definitions:
What type of reaction is characterized by the formation of water and a salt?
What type of reaction is characterized by the formation of water and a salt?
What do you call a reaction where an ion from a compound is replaced by an ion from another compound?
What do you call a reaction where an ion from a compound is replaced by an ion from another compound?
A combustion reaction only involves organic compounds.
A combustion reaction only involves organic compounds.
The ________ of a chemical reaction represents the substances before the reaction occurs.
The ________ of a chemical reaction represents the substances before the reaction occurs.
Which of the following is a diatomic molecule?
Which of the following is a diatomic molecule?
Flashcards
Combustion
Combustion
A chemical reaction where a substance reacts rapidly with oxygen to produce heat and light.
Chemical reaction types
Chemical reaction types
Categories that classify reactions based on the changes in substances.
Synthesis
Synthesis
Type of reaction where two or more substances combine to form a new substance
Decomposition
Decomposition
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Single Replacement
Single Replacement
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Double Replacement
Double Replacement
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Neutralization
Neutralization
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Balancing Chemical Equations
Balancing Chemical Equations
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What is dinitrogen monoxide?
What is dinitrogen monoxide?
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Decomposition Reaction
Decomposition Reaction
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Synthesis Reaction
Synthesis Reaction
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Example of decomposition reaction
Example of decomposition reaction
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Reactants
Reactants
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Products
Products
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What does it mean to classify a reaction?
What does it mean to classify a reaction?
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How can we classify chemical reactions?
How can we classify chemical reactions?
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Study Notes
Types of Chemical Reactions
- Chemical reactions can be categorized into six main types: synthesis, decomposition, single replacement, double replacement, neutralization (acid-base), and combustion.
- Classifying reactions involves examining reactants to predict products.
Synthesis Reactions
- In synthesis (or combustion) reactions, two or more reactants combine to form a single product.
- The general form is: element + element → compound (e.g., A + B → AB)
- Example 1: 2Na + Cl₂ → 2NaCl (sodium + chlorine → sodium chloride)
- Example 2: 2Mg + O₂ → 2MgO (magnesium + oxygen → magnesium oxide)
- Example 3: N₂ + O₂ → 2N₂O (nitrogen + oxygen → dinitrogen monoxide)
Decomposition Reactions
- Decomposition reactions break down a compound into smaller compounds or elements.
- The general form is: compound → element + element (e.g., AB → A + B)
- Example 1: 2NaCl → 2Na + Cl₂ (sodium chloride → sodium + chlorine)
- Example 2: 2H₂O → 2H₂ + O₂ (water → hydrogen + oxygen).
Single Replacement Reactions
- In a single replacement reaction, one element is replaced by another element in a compound.
- The element being substituted can be a metal or non-metal.
- The general form is: element + compound → element + compound (e.g., A + BC → AC + B where A is a metal) or (e.g., A + BC → AC + B where A is a non-metal)
- Example 1: Cu + 2AgNO₃ → Cu(NO₃)₂ + 2Ag (copper + silver nitrate → copper(II) nitrate + silver)
- Example 2: F₂ + 2NaI → I₂ + 2NaF (fluorine + sodium iodide → iodine + sodium fluoride)
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