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Comprehensive Review of Chemical Reactions and Stoichiometry Concepts

This review covers key concepts in chemical reactions, including balancing equations, identifying reaction types (synthesis, decomposition, single and double displacement), and predicting products. The reactions involve common compounds like Rb, H3PO4, and aluminum hydroxide. It further emphasizes the importance of the reactivity series to determine reaction feasibility and explores stoichiometry with practical examples like determining the mass of calcium carbonate needed for reactions. This resource is ideal for students looking to solidify their understanding of these fundamental chemistry concepts.

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Comprehensive Review of Chemical Reactions and Stoichiometry Concepts

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  1. Unit 4 Review!!!!

  2. Starting Easy…..Balance the following reactions. • Rb + RbNO3 Rb2O + N2 • H3PO4 + Mg(OH)2 Mg3(PO4)2 + H2O • Aluminum hydroxide + Carbonic acid  Aluminum carbonate + water Al(OH)3 + H2CO3 Al2(CO3)3 + H2O 10 2 6 2 3 6 2 3 6

  3. Identify the different types of Reactions (synthesis, decomposition, single displacement, double displacement) • 2H2 + O2 2H2O Synthesis 5. HCl + NaOH  NaCl + H2O Double Displacement 6. HNO3  H20 + O2 + NO2 Decomposition 7. K + B2O3  K2O + B Single Displacement

  4. Predict the Products of the following reactions! • Ca(OH)2 + HNO3 CaOH + HNO3 CaNO3 + H2O 9. NaClO3 (heated)  NaClO3  Na + ClO3 • Sodium + Chloride  Na + Cl  NaCl

  5. Phase Notation….Write out the chemical formulas and balance the equation including phase notations (solid, liquid, gas, aqueous) • Iron metal + oxygen gas  Iron(III)oxide solid 4Fe(s) + 3O2(g)  2Fe2O3(s) • Hydrogen gas + nitrogen gas  ammonia (NH3) gas 3H2(g) + N2(g)  2NH3(g) 13. Nitric acid solution (HNO3)  water + oxygen gas + nitrogen dioxide gas 4HNO3(aq)  2H2O(l) + O2(g) + 4NO2(g)

  6. Reactivity Series…. Answer the following questions using the activity series chart • Would the following reaction occur: Mg + Zn(NO3)  ? • Yes! Mg is higher on the chart than Zn (meaning Mg is more reactive than Zn) • Would the following reaction occur: Al + NaCl  ? • No! Aluminum is lower on the chart than Na (meaning Al is less reactive than Na) • What is the most reactive halogen? • Fluorine!

  7. Stoichiometry! Determine the amount of unknown quantities in each question! Use your STOICH-ED sheet for help! • How many grams of calcium carbonate are required to prepare 50.0g of calcium oxide? CaCO3 CaO + CO2 X g 50.0 g

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