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Questions and Answers
What is the general equation for a synthesis reaction?
What is the general equation for a synthesis reaction?
- A + BC → AC + B
- AB → A + B
- A + B → AB (correct)
- 2A + B → A2B
Which type of reaction involves the breakdown of a single compound into two or more simpler substances?
Which type of reaction involves the breakdown of a single compound into two or more simpler substances?
- Combination reaction
- Synthesis reaction
- Decomposition reaction (correct)
- Single displacement reaction
What is the general equation for a single displacement reaction?
What is the general equation for a single displacement reaction?
- AB → A + B
- A + BC → AC + B (correct)
- A + B → AB
- 2A + B → A2B
What is the result of a single displacement reaction?
What is the result of a single displacement reaction?
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Which of the following is an example of a decomposition reaction?
Which of the following is an example of a decomposition reaction?
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Study Notes
Chemical Reactions
Synthesis Reactions
- A type of chemical reaction where two or more substances combine to form a new compound
- Also known as combination reactions
- General equation: A + B → AB
- Examples:
- 2H2 + O2 → 2H2O (formation of water)
- CaO + H2O → Ca(OH)2 (formation of calcium hydroxide)
Decomposition Reactions
- A type of chemical reaction where a single compound breaks down into two or more simpler substances
- Also known as analysis reactions
- General equation: AB → A + B
- Examples:
- 2H2O → 2H2 + O2 (decomposition of water)
- CaCO3 → CaO + CO2 (decomposition of calcium carbonate)
Single Displacement Reactions
- A type of chemical reaction where one element displaces another element from a compound
- Also known as substitution reactions
- General equation: A + BC → AC + B
- Examples:
- Zn + CuSO4 → ZnSO4 + Cu (zinc displaces copper)
- 2Al + Fe2O3 → 2Fe + Al2O3 (aluminum displaces iron)
Note: These reactions involve the replacement of one element by another, resulting in the formation of a new compound and the release of the displaced element.
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