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Balancing Act 2. Admit Slip. Take out yesterday’s Classwork and Homework to be checked!. Today’s Objectives. Students will be able to: Balance chemical equations Explain the law of conservation of mass. Agenda. Homework Check Homework and Classwork Review
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Admit Slip Take out yesterday’s Classwork and Homework to be checked!
Today’s Objectives Students will be able to: • Balance chemical equations • Explain the law of conservation of mass Unit IV • Investigation II-X
Agenda • Homework Check • Homework and Classwork Review • Balancing Act 2 Classwork • Review • Exit Slip
Yesterday’s Classwork 1. Label the products and reactants in the following chemical equation: HCl(aq) + NaHCO3(aq) NaCl(aq) + H2O(l) + CO2(g) 2. Is the following chemical equation balanced? Why or why not? CaCl2 (aq) + NaOH (aq) Ca(OH)2 (s) + NaCl (aq)
Classwork cont.. 3. Is the following chemical equation balanced? Why or why not? CO2 (s) + H2O (l) H2CO3 (aq)
Balance the following equations, making sure the final equation is written CLEARLY. If the equation is already balanced, write “balanced” after the equation. • Cu + HCl CuCl2 + H2 • KBr + AgNO3 KNO3 + AgBr • CO2 + H2O HCO3 + CO
Homework Review 1. K(s) + I2 (s) KI(s) 2. Mg(s) + Br2(l) MgBr2 (s)
Homework Review 3. C3H8 + O2 CO2 + H2O 4. C2H6O + O2 CO2 + H2O
Homework Review • Al(s) + O2 (g) Al2O3
Classwork Complete your classwork by
Exit Slip a) What is the number 2 called in 6CO2 a) coefficientor b) subscript ? b) What is the number 6 called in 6CO2 a) coefficientor b) subscript ? c) How many oxygen, O atoms are included in 6CO2? d) How many carbon, C atoms are included in 6CO2?