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Understanding Types of Chemical Reactions in Chemistry

Learn the 5 general types of chemical reactions - combination, decomposition, single replacement, double replacement, and combustion. Understand each type with examples and practice problems. Enhance your knowledge of predicting reaction products.

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Understanding Types of Chemical Reactions in Chemistry

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  1. 11.2: Types of Chemical Reactions January 2015

  2. Objectives • 2.1. Describe the 5 general types of reactions • 2.2 Predict the products of the five general types of reactions.

  3. KEY CONCEPT • There are 5 general types of reactions: • Combination • Decomposition • Single Replacement • Double Replacement • Combustion

  4. Combination Reaction • Definition: A chemical change in which two or more substances react to form a single new substance • Example:

  5. Chemistry example

  6. Guided Practice Problem #7

  7. On your Own #8

  8. Decomposition Reaction • Definition: A chemical change in which a single compound breaks down into two simpler compounds. • Example:

  9. Chemistry Example

  10. Guided Practice Problem #9

  11. On Your Own #10

  12. Single-Replacement Reaction • Definition: A chemical change in which one element replaces a second element in a compound. • Example:

  13. Chemistry Example

  14. Guided Practice Problem #11 A

  15. Guided Practice Problem #11b

  16. On your own

  17. Double Replacement Reactions • Definition: A chemical change involving an exchange of positive ions between two compounds • Example:

  18. Chemistry Example

  19. Guided Practice Problem #13a

  20. Guided Practice Problem #13b

  21. On Your own #14a & 14B b. H2SO4 (aq) Al(OH)3 

  22. Combustion Reaction • Definition: A chemical change in which an element or a compound reacts with oxygen, producing energy in the form of heat and light. Basically, a reaction involving fire! • Chemistry Example:

  23. On Your own • Do #15 & 16 • #17 is a challenge  Do for extra practice • Do #18 • When you finish, you will be given the coloring & classifying worksheet.

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