• Objectives: To predict products – using types of reactions

• Warm-up: Check your worksheets from last week and make corrections where needed.

• Types of reactions • Single Replacement

• Predicting products • Types of reactions:

• Balancing chemical equations

Review: Energy & Reactions TypesReaction Type Analogy Endo or Exo-thermic ΔH

Synthesis

Decomposition

Single replacement

Double replacement

Combustion

Energy & activation energy• https://ed.ted.com/lessons/activation-energy-kickstarting-c

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Single replacement reactions • Element + compound → new compound + element

• magnesium + iron chloride magnesium chloride + iron

• Lithium bromide + chlorine ↣ lithium chloride + bromine

What is special about single replacement reactions?

• Only more active elements can replace • Use Activity Series charts

• Metals • Halogens • Use Reference Tables

magnesium + iron chloride magnesium chloride + iron

Lithium bromide + chlorine ↣ lithium chloride + bromine

Practice: • magnesium + iron nitrate magnesium nitrate + _____________•  •  •  • Nickel + ______________ nickel ll sulfate + zinc•  •  •  • zinc + ___________________ zinc II sulfate + copper•  •  •  • zinc + iron chloride ____________ + ____________•  •  

Predicting products – Synthesis reactions

Predicting products – decomposition reactions

Predicting products – single replacement

Predicting products – Double replacement

Predicting products: combustion

Easter Egg Hunt• You will work with a partner.

• Find one egg at a time • Solve the problem• Write the problem number of the page and your solutions.• Put the egg back.

• Pair with the most correctly done gets???

Balancing equations & reaction type• http://education.jlab.org/elementbalancing/

• Race

• Easter Egg Hunt

Other factors in chemical reactions• How to speed up reactions• http://ed.ted.com/lessons/how-to-speed-up-chemical-react

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