Clicker #1 Which of the following shows the correctly balanced equation for this reaction: H2O2 → H2O + O2 A) 3 H2O2 → 3 H2O + O2 B) H2O2 → 2 H2O + O2 C) 2 H2O2 → 2 H2O + O2 D) H2O2 → H2O + O2

Clicker #2 Which of the following diagrams best represents the chemical equation N2 + H2 → NH3 after it is balanced? A) + → B) + → + C) + + + + + + → D) + + + → + E) + + + →

Clicker #3 (practice) Which of the following shows the correctly balanced equation for this reaction: CaC2 + H2O → C2H2 + Ca(OH)2 A) CaC2 + H2O → C2H2 + Ca(OH)2 B) CaC2 + 2 H2O → C2H2 + Ca(OH)2 C) 2 CaC2 + H2O → C2H2 + 2 Ca(OH)2 D) 3 CaC2 + 3 H2O → C2H2 + 3 Ca(OH)2

Clicker #4 (practice) What is the correct unbalanced chemical equation for the reaction of iron(II) oxide with oxygen gas to produce iron(III) oxide? A) FeO + O2 → Fe2O3 B) FeO2 + O2 → Fe2O3 C) FeO2 + O2 → Fe3O2 D) FeO + O2 → Fe3O2 E) FeO2 + O2 → FeO