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This lesson contains series of activities, which will help you describe chemical reaction and equation, identify if a given equation is balanced, discuss the four basic types of chemical reaction and to enjoy one of the famous application of chemistry the fireworks. If you want to know how much you have learned after every lesson, try answering the assessment questions, To further enhance your knowledge, enrichment activities are provided and finally, you can refresh in your mind the concepts you learned by reading the reference card. So come on! Explore the world of chemical reaction by doing the series of activities. Guide Card

Please check the boxAfter Reading this page.I Still do not understand the lessonI understand what the lesson is all aboutWhat I think about the things to do EasyDifficultFor this Lesson, I want to do itAloneWith one of my classmatesWithin a groupAchemical reactionis a process that leads to the transformation of one set ofchemical substancesto another. Classically, chemical reactions encompass changes that only involve the positions ofelectronsin the forming and breaking ofchemical bonds betweenatoms, with no change to the nuclei, and can often be described by achemical equation. Nuclear chemistryis a sub-discipline of chemistry that involves the chemical reactions of unstable and radioactive elements where both electronic and nuclear changes may both occur.The substance initially involved in a chemical reaction are calledreactants or reagents. Chemical reactions are usually characterized by achemical change, and they yield one or moreproducts, which usually have properties different from the reactants. Reactions often consist of a sequence of individual sub-steps, the so-calledelementary reactions, and the information on the precise course of action is part of thereaction mechanism. Chemical reactions are described withchemical equations, which graphically present the starting materials, end products, and sometimes intermediate products and reaction conditions.Chemical reactions happen at a characteristicreaction rateat a given temperature and chemical concentration, and rapid reactions are often described asspontaneous, requiring no input of extra energy other than thermal energy. Non-spontaneous reactions run so slowly that they are considered to require the input of some type of additional energy in order to proceed to completion at human time scales.

To Start Off Guide Card:3SynthesisIn a synthesis reaction, two or more simple substances combine to form a more complex substance.

DecompositionA decomposition reaction is the opposite of a synthesis reaction, where a more complex substance breaks down into its more simple parts.

Types of Chemical ReactionSingle ReplacementA single uncombined element replaces another in a compound; in order words, one element trades places with another element in a compound

Double ReplacementThe anions and cations of two compounds switch places and form two entirely different compounds.

Guide Card:

Activity Card 1

Balanced or Not?1. + 2. + 3. +Answer Sheet1._____________ 2._____________3._____________

Activity Card 2Answer Sheet1._____________ 2._____________3._____________4._____________

1.2.3.4.Identify What Type of Reaction

Assessment Card 1Answer Sheet1._____________ 2._____________3._____________4._____________5._____________

Please check the boxWhat do you feel before this activity?I am ready for this activity YesNoMaybeI am confident to pass the test Yes NoMaybeHow much did I learnNothingA littleMoreMuch, much more!!!

Answer Sheet1._________________________ 2._________________________3._________________________4._________________________5._________________________

Identify if the following blanks are reactants or products.Activity Card 3

Activity Card 4Please check the boxWhat do you feel before this activity?I am ready for this activity YesNoMaybeI am confident to pass the test Yes NoMaybeHow much did I learnNothingA littleMoreMuch, much more!!!

Review This9Symbol+_3_(l)_5_(aq)_7__8_Meaning___1______ ___2______Solid___4______Gas___6______Heat addedCatalyst

Please check the boxWhat do you feel before this activity?I am ready for this activity YesNoMaybeI am confident to pass the test Yes NoMaybeHow much did I learnNothingA littleMoreMuch, much more!!!

Activity Card 5

Assessment Card 2Answer Sheet1._____________ 2._____________3._____________4._____________5._____________

Please check the boxWhat do you feel before this activity?I am ready for this activity YesNoMaybeI am confident to pass the test Yes NoMaybeHow much did I learnNothingA littleMoreMuch, much more!!!

Enrichment CardThis is not actually an enrichment card or an activity. This part will be just for entertainment. For the students to really appreciate the Chemistry of fireworks in which it is very common application, I put this type of entertainment.

Color GuideEnrichment CardPlease check the boxWhat do you feel before this activity?I am ready for this activity YesNoMaybeI am confident to pass the test Yes NoMaybeHow much did I learn NothingA littleMoreMuch, much more!!!

Reference: chemistry.about.comAnswer Card

Activity Card 11.Balanced2.Not3.Not

Activity Card 21. Synthesis2. Decomposition3. Single Replacement4. Double Replacement

Activity Card 3Activity Card 4A. Double ReplacementB. SynthesisC. Single ReplacementD. Double ReplacementE. Decomposition

Enrichment Card

Activity Card 5

Assessment Card 11. second2. second3. second4. first5. SecondAssessment Card 21. first2. first3. first4. fourth5. third