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Questions and Answers
What are the two processes involved in chemical reactions?
What are the two processes involved in chemical reactions?
Destructive and creative
What is the main distinction between chemical reactions?
What is the main distinction between chemical reactions?
The speed of the reaction.
What is another name for combination reactions?
What is another name for combination reactions?
Synthesis reactions
The reaction between sodium and chlorine is a ______ reaction.
The reaction between sodium and chlorine is a ______ reaction.
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What is the simplest type of decomposition reaction?
What is the simplest type of decomposition reaction?
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What is the general formula for decomposition reaction?
What is the general formula for decomposition reaction?
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What is the product of the decomposition of Sodium hydroxide?
What is the product of the decomposition of Sodium hydroxide?
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What is another name for Single-replacement reactions?
What is another name for Single-replacement reactions?
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What is the general formula for single-replacement reaction?
What is the general formula for single-replacement reaction?
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In a single-replacement reaction, what happens when the element is metallic?
In a single-replacement reaction, what happens when the element is metallic?
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What does the reaction between Magnesium and an aqueous solution of copper(II) nitrate represent?
What does the reaction between Magnesium and an aqueous solution of copper(II) nitrate represent?
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What type of compounds are involved in double-replacement reactions?
What type of compounds are involved in double-replacement reactions?
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The general formula for a double-replacement reaction is ______.
The general formula for a double-replacement reaction is ______.
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Combustion reactions are a special form of chemical reactions.
Combustion reactions are a special form of chemical reactions.
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Combustion reactions can be either a combination or a replacement reaction.
Combustion reactions can be either a combination or a replacement reaction.
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What is the main characteristic of combustion reactions?
What is the main characteristic of combustion reactions?
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What does combustion reactions produce energy as?
What does combustion reactions produce energy as?
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What is the simplest example of combustion?
What is the simplest example of combustion?
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Most combustion reactions occur with hydrocarbons or organic compounds.
Most combustion reactions occur with hydrocarbons or organic compounds.
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What are the two products of the complete combustion of hydrocarbons?
What are the two products of the complete combustion of hydrocarbons?
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Study Notes
Chemical Reactions
- Chemical reactions involve breaking and forming bonds between atoms to create new products
- Chemical reactions require collisions and overcoming energy barriers; some reactions are faster than others.
- Reactions can be categorized into five basic types: Combination, Decomposition, Single-Replacement, Double-Replacement, and Combustion
Combination Reactions (Synthesis)
- Two or more reactants combine to form a single product
- Example: 2Na(s) + Cl₂(g) → 2NaCl(s) (sodium reacts with chlorine to form sodium chloride)
Decomposition Reactions
- A compound breaks down into simpler substances (elements or simpler compounds)
- Example: 2NaOH(s) → Na₂O(s) + H₂O(g) (sodium hydroxide decomposes into sodium oxide and water)
Single-Replacement Reactions
- One element replaces another element in a compound
- The replacing element must be more reactive
- Example: Mg(s) + Cu(NO₃)₂(aq) → Mg(NO₃)₂ + Cu(s) (magnesium replaces copper in copper (II) nitrate)
Double-Replacement Reactions
- Positive and negative ions in two compounds exchange places to form new compounds
- Example: AB + CD → AD + CB (ionic compounds exchange partners)
Combustion Reactions
- Reactions that involve oxygen and produce energy (light and heat)
- Often considered a special kind of combination or replacement reaction because oxygen is always involved
- Example: 2H₂(g) + O₂(g) → 2H₂O(g) (hydrogen and oxygen react to make water)
- Example: C₃H₈(g) + 5O₂(g) → 3CO₂(g) + 4H₂O(g) (propane burns in oxygen to form carbon dioxide and water)
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Description
Explore the fascinating world of chemical reactions. This quiz covers the basic concepts, including the types of reactions such as combination, decomposition, single-replacement, double-replacement, and combustion. Test your knowledge and understanding of how these reactions occur and their mechanisms.
