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Snowman Challenge (Balancing Equations) Translating Chemical Equations

Snowman Challenge (Balancing Equations) Translating Chemical Equations. Objective: Today I will be able to: Apply the law of conservation of matter to balancing chemical equations Translate chemical equations from words to symbols and symbols to words Evaluation/Assessment:

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Snowman Challenge (Balancing Equations) Translating Chemical Equations

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  1. Snowman Challenge (Balancing Equations) Translating Chemical Equations

  2. Objective: • Today I will be able to: • Apply the law of conservation of matter to balancing chemical equations • Translate chemical equations from words to symbols and symbols to words • Evaluation/Assessment: • Informal Assessment – listening to student interactions as they complete the snowman challenge and the translating equations practice. • Formal Assessment – analyzing student responses to the exit ticket and translating equations practice • Common Core Connection • Make sense of problem and persevere in solving them • Reason abstractly and quantitatively • Look for and express regularity in repeated reasoning

  3. Lesson Sequence • Evaluate: Warm – Up • Evaluate: Review Homework • Elaborate: Snowman Challenge, Balancing Equations • Explain: Translating and Properties of Equations • Elaborate: Translating Equations Practice • Evaluate: Exit Ticket

  4. Warm - Up • Why do chemical equations need to be balanced? • Balance the following chemical equations • Fe + O2 → Fe2O3 • Si2H3 + O2 → SiO2 + H2O

  5. Objective • Today I will be able to: • Apply the law of conservation of matter to balancing chemical equations • Translate chemical equations from words to symbols and symbols to words

  6. Homework • Finish Translating Equations Practice

  7. Agenda • Warm – Up • Review Homework • Snowman Challenge • Translating Equations Notes • Translating Equations Practice • Exit Ticket

  8. Review Homework We will review selected problems as a class and then turn in the Balancing Chemical Equations Practice 1

  9. Snowman Challenge

  10. Snowman Challenge Rules • Work in groups of 3 (at your row) to balance equations • When you finish balancing your equations, bring your paper to Ms. Ose to check your answers • The first team to have all the correct answers wins a prize • Do not begin until Ms. Ose says GO!

  11. Translating Chemical Equations and Properties of Chemical Reactions Notes

  12. What is a chemical reaction? • Process of one or more reactants converting to form products with different properties.

  13. Ways to Represent Chemical Equations • Using words • Hydrogen (gas) + Oxygen (gas)  water (liquid) • Using symbols • H2(g) + O2(g) 2H2O(l) • Symbols are a shorthand way to represent an equation

  14. Evidence of Chemical Reactions • Production of a gas • Production of a solid • Precipitate – a solid formed as the product of a chemical reaction • A color change • Temperature change

  15. Translating Chemical Equations Practice Complete the practice at your desk and whatever you do not finish is homework

  16. Exit Ticket • For the following chemical reaction: • Solid mercury (II) oxide breaks down when heated, forming the elements mercury and oxygen. • Write the word equation • Write the balanced formula equation (symbols) • Make sure you include the correct state!

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