Types of Reactions Notes/Demos

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Presentation transcript:

Types of Reactions Notes/Demos

Objective: Today I will be able to: Differentiate between the 5 types of reactions Evaluation/Assessment: Informal assessment – listening to student interactions during the assessment/ demonstrations and as they complete the types of reactions practice Formal assessment – analyzing student responses to the types of reactions practice and exit ticket. Common Core Connection Build Strong Content Knowledge Make sense of problem and persevere in solving them Look for and express regularity in repeated reasoning

Lesson Sequence Evaluate: Warm – Up Engage/Explore: Types of Reactions Analogy Engage and Explain: Types of Reactions Demos/Assessment Elaborate: Types of reactions practice Evaluate: Exit Ticket

Warm - Up Identify the type of reaction and balance Ca(OH)2 + Al2(SO4)3  CaSO4 + Al(OH)3 Mg + Fe2O3  Fe + MgO

Objective Today I will be able to: Differentiate between the five types of reactions.

Homework Finish Identifying Types of Reactions Practice

Agenda Warm – Up Types of Reactions Analogy Types of Reactions Demos/Assessment Identifying Types of Reactions Practice Exit Ticket

Types of Reactions Analogy Working with your row, create an analogy for the 5 types of reactions (5 minutes). We will share ideas as a class.

Types of Reactions Demos/Assessment

Directions Work in partners Each group needs a whiteboard Ms. Ose will put a question/reaction or statement on the board and you will respond with the correct type of reaction If your answer is correct, you get a point

Types of Reactions Assessment

A + B  AB

Synthesis

A free element reacts with a compound to form a new compound and to release one of the elements of the original compound

Single Replacement (Double Displacement)

Demo! C3H7OH(l) + O2(g)  CO2(g) + H2O(g), triangle above arrow

Combustion

3 CaCl2 + 2 AlN  2 AlCl3 + Ca3N2

Double Replacement

Demo! CuSO4 + 2 NaOH  Cu(OH)2 + Na2SO4

Double Replacement

CaCO3  CaO + CO2

Decomposition

Elements or simple compounds are combined to form ONE product

Synthesis

Occurs when a hydrocarbon combines with oxygen gas in the air – burning

Combustion

2 KI + Cl2  2 KCl + I2

Single Replacement

Demo! Mg (s) + O2(g)  MgO (s), triangle above arrow

Synthesis

Two ionic compounds react to form two new ionic compounds; “switching partners” AB + CD  AC + BD

Double Replacement (Double Displacement)

AB + C  AC + B

Single Replacement

ONE compound breaks down into simpler substances General Equation: AB  A + B

Decomposition

Demo! H2O2(aq)  H2O(g) + O2(g), KI above the arrow Gummy Bear Decomposition

Decomposition

Demo! Mg(s) + HCl(aq)  H2(g) + MgCl2(aq)

Types of Reactions Practice Using your notes balance the equation and then predict the type of reaction that the equation represents.

Exit Ticket Identify the type of reaction: C10H8 + 12 O2 ---> 10 CO2 + 4 H2O Mg + 2 H2O ---> Mg(OH)2 + H2 2 H2O ---> 2 H2 + O2 8 Fe + S8 ---> 8 FeS Pb(NO3)2 + 2 KI ---> PbI2 + 2 KNO3