Part A — Rules for Balancing. Balance each equation by writing whole-number coefficients. Choose the set of coefficients that correctly balances the equation Ca + O2 → CaO.

Part A — Rules for Balancing. Balance each equation by writing whole-number coefficients. Choose the set of coefficients that correctly balances the equation Na + Cl2 → NaCl.

Part A — Rules for Balancing. Balance each equation by writing whole-number coefficients. Choose the set of coefficients that correctly balances the equation Mg + O2 → MgO.

Part A — Rules for Balancing. Balance each equation by writing whole-number coefficients. Choose the set of coefficients that correctly balances the equation H2O2 → H2O + O2.

Part A — Rules for Balancing. Balance each equation by writing whole-number coefficients. Choose the set of coefficients that correctly balances the equation Al + Br2 → AlBr3.

Part A — Rules for Balancing. Balance each equation by writing whole-number coefficients. Choose the set of coefficients that correctly balances the equation N2 + H2 → NH3.

Part A — Rules for Balancing. Balance each equation by writing whole-number coefficients. Choose the set of coefficients that correctly balances the equation C + O2 → CO2.

Part A — Rules for Balancing. Balance each equation by writing whole-number coefficients. Choose the set of coefficients that correctly balances the equation Na2O → Na + O2.

Part A — Rules for Balancing. Balance each equation by writing whole-number coefficients. Choose the set of coefficients that correctly balances the equation CuO + C → Cu + CO2.

Part B — Identify the Reaction Type. Write Synthesis (S), Decomposition (D), or Replacement (R). Identify the reaction type for 2H2 + O2 → 2H2O.

Part B — Identify the Reaction Type. Write Synthesis (S), Decomposition (D), or Replacement (R). Identify the reaction type for 2H2O2 → 2H2O + O2.

Part B — Identify the Reaction Type. Write Synthesis (S), Decomposition (D), or Replacement (R). Identify the reaction type for Zn + 2HCl → ZnCl2 + H2.

Part B — Identify the Reaction Type. Write Synthesis (S), Decomposition (D), or Replacement (R). Identify the reaction type for CaCO3 → CaO + CO2.

Part B — Identify the Reaction Type. Write Synthesis (S), Decomposition (D), or Replacement (R). Identify the reaction type for Na + Cl2 → 2NaCl.

Part B — Identify the Reaction Type. Write Synthesis (S), Decomposition (D), or Replacement (R). Identify the reaction type for CuO + C → Cu + CO2.

Part C — Show Your Work. Choose any two from Part A and show atom counting. According to the instructions, how many equations from Part A must you choose to show atom counting?

Part D — Evidence of a Chemical Reaction. Circle ALL that apply in each situation. Baking soda reacts with vinegar producing bubbles. Which observations are evidence of a chemical reaction?

Part D — Evidence of a Chemical Reaction. Circle ALL that apply in each situation. Candle wax melts. Which observations are evidence of a chemical reaction?

Part D — Evidence of a Chemical Reaction. Circle ALL that apply in each situation. Metal rusts in the rain. Which observations are evidence of a chemical reaction?

Part E — Conservation of Mass Word Problem. A sample of magnesium weighing 6 grams reacts with oxygen to form 10 grams of magnesium oxide. How much oxygen reacted?

Part E — Balance and identify the type: endothermic or exothermic. Choose the balanced coefficients and energy type for C3H8 + O2 → CO2 + H2O.

Part E — Balance. Choose the set of coefficients that correctly balances the equation Fe2O3 + Al → Fe + Al2O3.